Home/Products

Request Quote Catalog for API Impurities, Standards and Intermediates

Browse enquiry categories for API impurities, working standards, reference standards, pharmaceutical intermediates, and custom synthesis support from India. Availability, scale, purity, documentation, and export timeline are confirmed after quotation review.

Quote Request Categories

Choose the Requirement Type

Use these categories when you need a quotation review rather than a fixed stock list. Our team checks product identity, technical feasibility, documentation, and export details before responding.

API Impurities

API impurity standards, related compounds, degradation products, metabolites, and custom impurity targets for quotation review.

View quote details →

Working Standards

Pharmaceutical working standards for routine QC, method validation, assay support, and system suitability workflows.

View quote details →

Reference Standards

Reference standards and impurity reference materials for analytical development, comparison, and validation programs.

View quote details →

Pharmaceutical Intermediates

API intermediates, development intermediates, and custom intermediate enquiries for export buyers.

View quote details →

Custom Synthesis

Rare impurities, metabolites, degradants, intermediates, and non-catalogue compounds reviewed against structure and scale.

View quote details →
API Family Enquiries

Browse Common API Impurity Families

These pages help buyers submit impurity, related-compound, working-standard, intermediate, or custom synthesis requirements by API family.

Azithromycin Impurities

Macrolide antibiotic impurity standards and related compound enquiries.

View enquiry page →

Ciprofloxacin Impurities

Fluoroquinolone impurity standards for analytical and QC requirements.

View enquiry page →

Metformin Impurities

Related compounds and standards for antidiabetic-product analysis.

View enquiry page →

Ibuprofen Impurities

NSAID-related impurity and analytical standard enquiries.

View enquiry page →

Clarithromycin Impurities

Macrolide-related compounds, degradants, and impurity standards.

View enquiry page →

Fluconazole Impurities

Antifungal related compounds and impurity-standard enquiries.

View enquiry page →

Clopidogrel Impurities

Related compound and analytical-standard enquiries for clopidogrel.

View enquiry page →
Product Enquiry List

Browse Products for Quote Review

Use this list to select common API impurity, working standard, reference standard, intermediate, or custom synthesis enquiries. Items are reviewed for availability or synthesis feasibility after you submit the quote form.

A B C D E F G I L M N O P R S T V W
Abacavir EP Impurity F Quote / custom review
Abacavir API impurity CAS / structure: share if available
Request Quote
Abacavir N-Oxide Quote / custom review
Abacavir API impurity CAS / structure: share if available
Request Quote
Abacavir Sulfate Impurity D Quote / custom review
Abacavir Sulfate API impurity CAS / structure: share if available
Request Quote
Acarbose Impurities Quote / custom review
Acarbose API impurity CAS / structure: share if available
Request Quote
Aceclofenac Impurities Quote / custom review
Aceclofenac API impurity CAS / structure: share if available
Request Quote
Acetyl Lovastatin Quote / custom review
Lovastatin API impurity / related compound CAS / structure: share if available
Request Quote
Acetylcysteine Impurity A Quote / custom review
Acetylcysteine API impurity CAS / structure: share if available
Request Quote
Acetylcysteine Impurity B Quote / custom review
Acetylcysteine API impurity CAS / structure: share if available
Request Quote
Acetylcysteine Impurity C Quote / custom review
Acetylcysteine API impurity CAS / structure: share if available
Request Quote
Acetylcysteine Impurity D Quote / custom review
Acetylcysteine API impurity CAS / structure: share if available
Request Quote
Acyclovir Impurities Quote / custom review
Acyclovir API impurity CAS / structure: share if available
Request Quote
Albendazole Impurities Quote / custom review
Albendazole API impurity CAS / structure: share if available
Request Quote
Allylamine Quote / custom review
Allylamine Reagent / intermediate CAS / structure: share if available
Request Quote
Allylamine Hydrochloride Quote / custom review
Allylamine Reagent / intermediate CAS / structure: share if available
Request Quote
Allylchloride Quote / custom review
Allyl chloride Reagent / intermediate CAS / structure: share if available
Request Quote
Amlodipine Impurities Quote / custom review
Amlodipine API impurity CAS / structure: share if available
Request Quote
Amoxicillin Impurities Quote / custom review
Amoxicillin API impurity CAS / structure: share if available
Request Quote
Anhydro Lovastatin Quote / custom review
Lovastatin API impurity / related compound CAS / structure: share if available
Request Quote
Arginine CRS EP Quote / custom review
Arginine Reference standard CAS / structure: share if available
Request Quote
Atorvastatin Impurities Quote / custom review
Atorvastatin API impurity CAS / structure: share if available
Request Quote
Azithromycin Impurities Quote / custom review
Azithromycin API impurity CAS / structure: share if available
Request Quote
Azithromycin Intermediates Quote / custom review
Azithromycin Intermediate CAS / structure: share if available
Request Quote
Bisoprolol Impurities Quote / custom review
Bisoprolol API impurity CAS / structure: share if available
Request Quote
Carvedilol Impurities Quote / custom review
Carvedilol API impurity CAS / structure: share if available
Request Quote
Cefepime Hydrochloride USP Quote / custom review
Cefepime Hydrochloride USP reference/API standard CAS / structure: share if available
Request Quote
Cefixime Impurities Quote / custom review
Cefixime API impurity CAS / structure: share if available
Request Quote
Cefpodoxime Impurities Quote / custom review
Cefpodoxime API impurity CAS / structure: share if available
Request Quote
Cefuroxime Sodium USP Quote / custom review
Cefuroxime Sodium USP reference/API standard CAS / structure: share if available
Request Quote
Cetirizine Impurities Quote / custom review
Cetirizine API impurity CAS / structure: share if available
Request Quote
Chiral Intermediates Quote / custom review
Multiple APIs Intermediate CAS / structure: share if available
Request Quote
Ciprofloxacin Impurities Quote / custom review
Ciprofloxacin API impurity CAS / structure: share if available
Request Quote
Ciprofloxacin Intermediates Quote / custom review
Ciprofloxacin Intermediate CAS / structure: share if available
Request Quote
Clarithromycin Impurities Quote / custom review
Clarithromycin API impurity CAS / structure: share if available
Request Quote
Clopidogrel Impurities Quote / custom review
Clopidogrel API impurity CAS / structure: share if available
Request Quote
Clopidogrel Intermediates Quote / custom review
Clopidogrel Intermediate CAS / structure: share if available
Request Quote
Custom Impurity Synthesis Quote / custom review
Multiple APIs Custom synthesis CAS / structure: share if available
Request Quote
Custom Intermediate Synthesis Quote / custom review
Multiple APIs Custom synthesis CAS / structure: share if available
Request Quote
Dapagliflozin Impurities Quote / custom review
Dapagliflozin API impurity CAS / structure: share if available
Request Quote
Darunavir Isomer-3 Impurity Quote / custom review
Darunavir API impurity CAS / structure: share if available
Request Quote
Dextromethorphan EP Impurity E Quote / custom review
Dextromethorphan API impurity CAS / structure: share if available
Request Quote
Dextromethorphan Impurity E / Levomethorphan Quote / custom review
Dextromethorphan / Levomethorphan API impurity CAS / structure: share if available
Request Quote
Diazabicycloundecene (DBU) Quote / custom review
DBU Reagent / intermediate CAS / structure: share if available
Request Quote
Diclofenac Impurities Quote / custom review
Diclofenac API impurity CAS / structure: share if available
Request Quote
Dihydro Midazolam (RRF-0.5) Quote / custom review
Midazolam API impurity / related compound CAS / structure: share if available
Request Quote
Diphenyl PMPA Quote / custom review
PMPA Intermediate / KSM CAS / structure: share if available
Request Quote
Duloxetine Impurities Quote / custom review
Duloxetine API impurity CAS / structure: share if available
Request Quote
Empagliflozin Impurities Quote / custom review
Empagliflozin API impurity CAS / structure: share if available
Request Quote
Empagliflozin Working Standard Quote / custom review
Empagliflozin Working standard CAS / structure: share if available
Request Quote
Emtricitabine Impurity J Quote / custom review
Emtricitabine API impurity CAS / structure: share if available
Request Quote
Ethyl 2-(cis-4-aminocyclohexyl)acetate hydrochloride Quote / custom review
Cyclohexyl acetate derivative Intermediate / KSM CAS / structure: share if available
Request Quote
Etoricoxib Impurities Quote / custom review
Etoricoxib API impurity CAS / structure: share if available
Request Quote
Febuxostat Impurities Quote / custom review
Febuxostat API impurity CAS / structure: share if available
Request Quote
Fluconazole Impurities Quote / custom review
Fluconazole API impurity CAS / structure: share if available
Request Quote
Folic Acid Impurities Quote / custom review
Folic Acid API impurity CAS / structure: share if available
Request Quote
Gabapentin Impurities Quote / custom review
Gabapentin API impurity CAS / structure: share if available
Request Quote
Gliclazide Impurities Quote / custom review
Gliclazide API impurity CAS / structure: share if available
Request Quote
Glimepiride Impurities Quote / custom review
Glimepiride API impurity CAS / structure: share if available
Request Quote
Ibuprofen Impurities Quote / custom review
Ibuprofen API impurity CAS / structure: share if available
Request Quote
Impurity 1-[5-(2-fluorophenyl)-1-(pyridine-3-sulfonyl)-1H-pyrrol-3-yl]-N,N-dimethyl Methanamine Quote / custom review
Vonoprazan intermediate family API impurity / intermediate impurity CAS / structure: share if available
Request Quote
Impurity B / Lamivudine Diastereomer Quote / custom review
Lamivudine API impurity CAS / structure: share if available
Request Quote
Impurity D (Oxide Midazolam) Quote / custom review
Midazolam API impurity CAS / structure: share if available
Request Quote
Impurity D (trans-Abacavir) Quote / custom review
Abacavir API impurity CAS / structure: share if available
Request Quote
Impurity F / Uracil Quote / custom review
Lamivudine / nucleoside family API impurity / related compound CAS / structure: share if available
Request Quote
Irbesartan Impurities Quote / custom review
Irbesartan API impurity CAS / structure: share if available
Request Quote
Itraconazole Impurities Quote / custom review
Itraconazole API impurity CAS / structure: share if available
Request Quote
Lansoprazole Impurities Quote / custom review
Lansoprazole API impurity CAS / structure: share if available
Request Quote
Levofloxacin Impurities Quote / custom review
Levofloxacin API impurity CAS / structure: share if available
Request Quote
Linezolid Impurities Quote / custom review
Linezolid API impurity CAS / structure: share if available
Request Quote
Linezolid Impurity LNZE-IA Quote / custom review
Linezolid API impurity / intermediate impurity CAS / structure: share if available
Request Quote
Losartan Impurities Quote / custom review
Losartan API impurity CAS / structure: share if available
Request Quote
Losartan Intermediates Quote / custom review
Losartan Intermediate CAS / structure: share if available
Request Quote
Lovastatin Dimer Quote / custom review
Lovastatin API impurity / related compound CAS / structure: share if available
Request Quote
Mefenamic Acid Impurities Quote / custom review
Mefenamic Acid API impurity CAS / structure: share if available
Request Quote
Meropenem USP Quote / custom review
Meropenem USP reference/API standard CAS / structure: share if available
Request Quote
Metformin Impurities Quote / custom review
Metformin API impurity CAS / structure: share if available
Request Quote
Metformin Working Standards Quote / custom review
Metformin Working standard CAS / structure: share if available
Request Quote
Methyl Acrylamide Quote / custom review
Acrylamide derivative Reagent / intermediate CAS / structure: share if available
Request Quote
Methylprednisolone Acetate EP Impurity J Quote / custom review
Methylprednisolone Acetate API impurity CAS / structure: share if available
Request Quote
Monacolin L Quote / custom review
Lovastatin / Monacolin family API impurity / related compound CAS / structure: share if available
Request Quote
Montelukast Impurities Quote / custom review
Montelukast API impurity CAS / structure: share if available
Request Quote
Moxifloxacin Impurities Quote / custom review
Moxifloxacin API impurity CAS / structure: share if available
Request Quote
N-Acetyl Cystine Working Standard Quote / custom review
N-Acetyl Cystine Working standard CAS / structure: share if available
Request Quote
Ninhydrin Quote / custom review
Ninhydrin Reagent / analytical reagent CAS / structure: share if available
Request Quote
Olmesartan Impurities Quote / custom review
Olmesartan API impurity CAS / structure: share if available
Request Quote
Omeprazole Impurities Quote / custom review
Omeprazole API impurity CAS / structure: share if available
Request Quote
Ondansetron Impurities Quote / custom review
Ondansetron API impurity CAS / structure: share if available
Request Quote
Oxide Midazolam (RRF-1.3) Quote / custom review
Midazolam API impurity CAS / structure: share if available
Request Quote
Pantoprazole Impurities Quote / custom review
Pantoprazole API impurity CAS / structure: share if available
Request Quote
Paracetamol Impurities Quote / custom review
Paracetamol API impurity CAS / structure: share if available
Request Quote
Pharmaceutical Intermediates Quote / custom review
Multiple APIs Intermediate CAS / structure: share if available
Request Quote
Pregabalin Impurities Quote / custom review
Pregabalin API impurity CAS / structure: share if available
Request Quote
PTL 1 Butyl Impurity (PTH 1 Butyl Impurity) Quote / custom review
Project-specific PTH/PTL family Custom/project-specific impurity CAS / structure: share if available
Request Quote
PTL 1 Dimer (PTH1 Dimer) Quote / custom review
Project-specific PTH/PTL family Custom/project-specific impurity CAS / structure: share if available
Request Quote
PTL 1 PRD Dimer (PTH1 PRD Dimer) Quote / custom review
Project-specific PTH/PTL family Custom/project-specific impurity CAS / structure: share if available
Request Quote
PTL 3 PRD (PTH-II PRD) Quote / custom review
Project-specific PTH/PTL family Custom/project-specific impurity CAS / structure: share if available
Request Quote
PTS-Benzyl Amino Alcohol Quote / custom review
Project-specific PTS family Intermediate / project impurity CAS / structure: share if available
Request Quote
PTS-Benzyl Piperidine Quote / custom review
Project-specific PTS family Intermediate / project impurity CAS / structure: share if available
Request Quote
PTS-Des Impurity Quote / custom review
Project-specific PTS family Custom/project-specific impurity CAS / structure: share if available
Request Quote
PTS-N-Oxide Quote / custom review
Project-specific PTS family Custom/project-specific impurity CAS / structure: share if available
Request Quote
Rabeprazole Impurities Quote / custom review
Rabeprazole API impurity CAS / structure: share if available
Request Quote
Racemic Mixture of Ivabradine Quote / custom review
Ivabradine API impurity / related compound CAS / structure: share if available
Request Quote
Reference Standards for APIs Quote / custom review
Multiple APIs Reference standard CAS / structure: share if available
Request Quote
Research Compounds Quote / custom review
Multiple APIs Custom synthesis CAS / structure: share if available
Request Quote
Rifampicin N-Oxide (Impurity F) Quote / custom review
Rifampicin API impurity CAS / structure: share if available
Request Quote
Rivaroxaban Impurities Quote / custom review
Rivaroxaban API impurity CAS / structure: share if available
Request Quote
Rosuvastatin Impurities Quote / custom review
Rosuvastatin API impurity CAS / structure: share if available
Request Quote
Sartan Impurities Quote / custom review
Sartan APIs API impurity CAS / structure: share if available
Request Quote
Sitagliptin Impurities Quote / custom review
Sitagliptin API impurity CAS / structure: share if available
Request Quote
Sitagliptin KSM Impurity E Quote / custom review
Sitagliptin KSM / intermediate impurity CAS / structure: share if available
Request Quote
Sitagliptin KSM Impurity F Quote / custom review
Sitagliptin KSM / intermediate impurity CAS / structure: share if available
Request Quote
Sitagliptin KSM Impurity H Quote / custom review
Sitagliptin KSM / intermediate impurity CAS / structure: share if available
Request Quote
Sodium Valproate Impurities Quote / custom review
Sodium Valproate API impurity CAS / structure: share if available
Request Quote
Stearic Diglyceride / Distearin Quote / custom review
Stearic acid glyceride family Excipient impurity / related compound CAS / structure: share if available
Request Quote
1,1,1-Trifluoro-2-(1H-pyrrol-2-yl)ethan-2-ol Quote / custom review
Fluorinated pyrrole alcohol Intermediate / KSM CAS / structure: share if available
Request Quote
2,2-Azobis(2-Amidinopropane)dihydrochloride (AAPH) Quote / custom review
AAPH Reagent / intermediate CAS / structure: share if available
Request Quote
2-Methyl-2-thiazoline-4-carboxylic acid Quote / custom review
Thiazoline carboxylic acid derivative Intermediate / related compound CAS / structure: share if available
Request Quote
3-Hydroxy Lovastatin Quote / custom review
Lovastatin API impurity / related compound CAS / structure: share if available
Request Quote
Telmisartan Impurities Quote / custom review
Telmisartan API impurity CAS / structure: share if available
Request Quote
Teneligliptin Impurities Quote / custom review
Teneligliptin API impurity CAS / structure: share if available
Request Quote
Tiglistatin Quote / custom review
Tiglistatin API impurity / related compound CAS / structure: share if available
Request Quote
Tramadol Impurities Quote / custom review
Tramadol API impurity CAS / structure: share if available
Request Quote
Valsartan Impurities Quote / custom review
Valsartan API impurity CAS / structure: share if available
Request Quote
Valsartan Intermediates Quote / custom review
Valsartan Intermediate CAS / structure: share if available
Request Quote
Vildagliptin IH Standard Quote / custom review
Vildagliptin Working standard CAS / structure: share if available
Request Quote
Vildagliptin Impurity A IH Quote / custom review
Vildagliptin API impurity CAS / structure: share if available
Request Quote
Vildagliptin Impurity B Quote / custom review
Vildagliptin API impurity CAS / structure: share if available
Request Quote
Vildagliptin Impurity C Quote / custom review
Vildagliptin API impurity CAS / structure: share if available
Request Quote
Vildagliptin Impurity D IH Quote / custom review
Vildagliptin API impurity CAS / structure: share if available
Request Quote
Vonoprazan Impurity V Quote / custom review
Vonoprazan API impurity CAS / structure: share if available
Request Quote
Voriconazole Impurities Quote / custom review
Voriconazole API impurity CAS / structure: share if available
Request Quote
Working Standards for APIs Quote / custom review
Multiple APIs Working standard CAS / structure: share if available
Request Quote
How Quote Requests Work

What to Send for Faster Quotation Review

A technically complete quote request helps us assess availability, custom synthesis feasibility, documentation expectations, and export planning with fewer follow-up emails.

Compound Identity

Share product name, API family, impurity designation, CAS number, structure, or reference where available.

Quantity and Purity

Mention requested scale, purity target, and whether repeat demand is expected.

Documentation Needs

List CoA, HPLC, NMR, MS, IR, SDS, or other analytical data expectations.

Destination Country

Include destination country and city so export quotation planning can start correctly.

Application Context

Mention QC, method validation, stability, assay, research, development, or manufacturing use.

Timeline

Tell us quotation urgency, project deadline, or preferred delivery planning window.

Need a Compound Not Listed?

Send the API name, impurity designation, CAS number or structure if available, destination country, quantity, purity target, documentation needs, and timeline for review.

Request Export Quote Contact Our Team