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Hengyuan Fine Chemical is a leading supplier of reference materials and standards, specializing in providing high-precision and highly reliable solutions for industries such as environmental testing, food safety, and pharmaceutical research and development. We offer nearly 50,000 ready-to-ship products, including pharmaceutical impurity reference standards, chemical analysis reference standards, pharmacopoeial titrants, biopeptide reference standards, and more, meeting the testing needs of various industries.

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Product Number Image Product Name CAS No. Molecular Formula
Product Number:T32951 hydroxypropylchloropiperazine Product Name:hydroxypropylchloropiperazine CAS No.:32229-98-4 Molecular Formula:
Product Number:PCL-#-Az951-100mg 2-[2-(3-Chlorophenyl)-acetyl]-benzoic acid Product Name:2-[2-(3-Chlorophenyl)-acetyl]-benzoic acid CAS No.:148960-78-5 Molecular Formula:
Product Number:PCL-#-Cp109-100mg Clindamycin B 2-phosphate Product Name:Clindamycin B 2-phosphate CAS No.:54887-31-9 Molecular Formula:
Product Number:PCL-#-Et671-25mg Melatonin impurity 3 Product Name:Melatonin impurity 3 CAS No.:67199-08-0 Molecular Formula:
Product Number:PCL-#-Me205-50mg R(+)-α-methylbenzylamine Product Name:R(+)-α-methylbenzylamine CAS No.:3886-69-9 Molecular Formula:
Product Number:PCL-#-Fi005-25mg Fenaridone control Product Name:Fenaridone control CAS No.:1050477-31-0 Molecular Formula:
Product Number:PCL-#-Chp0448-25mg Ramipril Impurity II (Ramipril isopropyl ester) Product Name:Ramipril Impurity II (Ramipril isopropyl ester) CAS No.:295328-72-2 Molecular Formula:
Product Number:PCL-#-Al733-25mg Methanesulfonamide hydrochloride Product Name:Methanesulfonamide hydrochloride CAS No.:149436-41-9 Molecular Formula:
Product Number:PCL-#-Lev272-100mg Ropivacaine impurity A Product Name:Ropivacaine impurity A CAS No.:27262-47-1 Molecular Formula:
Product Number:PCL-#-Ke010- 50mg 2-ketoglutaric acid Product Name:2-ketoglutaric acid CAS No.:328-50-7 Molecular Formula:
Product Number:PCL-#-Me836-25mg Isomeric cyclosporin H Product Name:Isomeric cyclosporin H CAS No.:83602-43-1 Molecular Formula:
Product Number:PCL-#-Chp0418-1g 2-Aminopyridine Product Name:2-Aminopyridine CAS No.:504-29-0 Molecular Formula:
Product Number:PCL-#-Ch094-100mg Zopiclone impurity O Product Name:Zopiclone impurity O CAS No.:43200-83-5 Molecular Formula:
Product Number:PCL-#-Di122-1g Dexzopiclone impurity U Product Name:Dexzopiclone impurity U CAS No.:17026-42-5 Molecular Formula:
Product Number:PCL-#-Me864-25mg Emgliflozin impurity Z23 control product Product Name:Emgliflozin impurity Z23 control product CAS No.:864070-37-1 Molecular Formula:
Product Number:PCL-#-Qu009-100mg Quetiapine fumarate impurity I Product Name:Quetiapine fumarate impurity I CAS No.:329216-67-3 Molecular Formula:
Product Number:PCL-#-Qu027-100mg Quetiapine fumarate impurity B Product Name:Quetiapine fumarate impurity B CAS No.:5747-48-8 Molecular Formula:
Product Number:PCL-#-Bm007-50mg Apixaban impurity C Product Name:Apixaban impurity C CAS No.:503614-91-3 Molecular Formula:
Product Number:PCL-#-Bm002-50mg Apixaban impurity E Product Name:Apixaban impurity E CAS No.:503614-92-4 Molecular Formula:
Product Number:PCL-#-Mo009-50mg Apixaban impurity A Product Name:Apixaban impurity A CAS No.:545445-44-1 Molecular Formula:
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