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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:PCL-#-Pr100-25mg Pramipexole EP impurity E Product Name:Pramipexole EP impurity E CAS No.:106006-80-8 Molecular Formula:
Product Number:PCL-#-Fm874-20mg Fmoc-L-citrulline Product Name:Fmoc-L-citrulline CAS No.:133174-15-9 Molecular Formula:
Product Number:PCL-#-Di150-50mg 3,5-Dihydroxyacetophenone Product Name:3,5-Dihydroxyacetophenone CAS No.:51863-60-6 Molecular Formula:
Product Number:PCL-#-Sp100-25mg (S)-(-)- α-methylbenzylamine Product Name:(S)-(-)- α-methylbenzylamine CAS No.:2627-86-3 Molecular Formula:
Product Number:PCL-#-Am100-50mg Sodium p-aminosalicylate impurity Ⅰ m-aminophenol Product Name:Sodium p-aminosalicylate impurity Ⅰ m-aminophenol CAS No.:591-27-5 Molecular Formula:
Product Number:PCL-#-Bz0372-50mg Pramipexole Impurity BI-II546CL (Racemic hydrochloride) Product Name:Pramipexole Impurity BI-II546CL (Racemic hydrochloride) CAS No.:2245708-68-1（HCl) Molecular Formula:
Product Number:PCL-#-Bz0056-50mg Acyclovir impurity F Product Name:Acyclovir impurity F CAS No.:110104-37-5 Molecular Formula:
Product Number:PCL-#-Or001-50mg Ornidazole impurity 7 Product Name:Ornidazole impurity 7 CAS No.:1348117-98-5 Molecular Formula:
Product Number:PCL-#-Bz0225-50mg Paclitaxel EP impurity L Product Name:Paclitaxel EP impurity L CAS No.:92950-39-5 Molecular Formula:
Product Number:130651 Azithromycin impurity A Product Name:Azithromycin impurity A CAS No.:76801-85-9 Molecular Formula:
Product Number:PCL-#-Ca044-50mg Sodium carboxysulfonate impurity 6 Product Name:Sodium carboxysulfonate impurity 6 CAS No.:130570-60-4 Molecular Formula:
Product Number:PCL-#-Bz0069-50mg Atorvastatin impurity 4 Product Name:Atorvastatin impurity 4 CAS No.:887196-30-7 Molecular Formula:
Product Number:PCL-#-Te590 -50mg a-Terpineol Product Name:a-Terpineol CAS No.:10482-56-1 Molecular Formula:
Product Number:PCL-#-L531-200mg L-tryptophan Product Name:L-tryptophan CAS No.:73-22-3 Molecular Formula:
Product Number:PCL-#-Ph008-200mg 2-Phenylpyridine Product Name:2-Phenylpyridine CAS No.:1008-89-5 Molecular Formula:
Product Number:PCL-#-Te010-25ml Tetramethylurea Product Name:Tetramethylurea CAS No.:632-22-4 Molecular Formula:
Product Number:PCL-#-Fo010-1g Formamide Product Name:Formamide CAS No.:75-12-7 Molecular Formula:
Product Number:PCL-#-Cy020-1g 3-Cyanobenzyl bromide Product Name:3-Cyanobenzyl bromide CAS No.:28188-41-2 Molecular Formula:
Product Number:PCL-#-Az946-100mg p-Chlorophenylacetic acid Product Name:p-Chlorophenylacetic acid CAS No.:1878-66-6 Molecular Formula:
Product Number:PCL-#-Ga100-1g D-Gluconic acid, 50% aqueous solution Product Name:D-Gluconic acid, 50% aqueous solution CAS No.:526-95-4 Molecular Formula:
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