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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:101286 Atorvastatin calcium impurity E Product Name:Atorvastatin calcium impurity E CAS No.:101286-N/A Molecular Formula:
Product Number:101285 Atorvastatin calcium impurity D Product Name:Atorvastatin calcium impurity D CAS No.:101285-N/A Molecular Formula:
Product Number:101281 Butyl flufenamic acid Product Name:Butyl flufenamic acid CAS No.:101281-N/A Molecular Formula:
Product Number:101280 3-Acetamido-7-methanesulfonamido-6-phenoxy-4H-1-benzopyran-4-one (Eramod impurity M12) Product Name:3-Acetamido-7-methanesulfonamido-6-phenoxy-4H-1-benzopyran-4-one (Eramod impurity M12) CAS No.:101280-N/A Molecular Formula:
Product Number:510208 N-nitrosodi-n-butylamine (NDBA) Product Name:N-nitrosodi-n-butylamine (NDBA) CAS No.:924-16-3 Molecular Formula:
Product Number:510209 N-nitrosodiisopropylamine (NDIPA) Product Name:N-nitrosodiisopropylamine (NDIPA) CAS No.:601-77-4 Molecular Formula:
Product Number:510206 N-nitroso-N-ethylisopropylamine (NEIPA) Product Name:N-nitroso-N-ethylisopropylamine (NEIPA) CAS No.:16339-04-1 Molecular Formula:
Product Number:101269 Posenstein Product Name:Posenstein CAS No.:101269-N/A Molecular Formula:
Product Number:101268 Areldipine Product Name:Areldipine CAS No.:101268-N/A Molecular Formula:
Product Number:101266 Meprobamate hydrochloride Product Name:Meprobamate hydrochloride CAS No.:101266-N/A Molecular Formula:
Product Number:101276 Pirfenidone Product Name:Pirfenidone CAS No.:101276-N/A Molecular Formula:
Product Number:101275 Racemic deserpine Product Name:Racemic deserpine CAS No.:101275-N/A Molecular Formula:
Product Number:1ST2538-100mg Phenoxyethanol Product Name:Phenoxyethanol CAS No.:122-99-6 Molecular Formula:
Product Number:190243 L(+)-tartaric acid Product Name:L(+)-tartaric acid CAS No.:87-69-4 Molecular Formula:
Product Number:101217 Amodiaquine hydrochloride Product Name:Amodiaquine hydrochloride CAS No.:101217-N/A Molecular Formula:
Product Number:101216 alpha-naphthol Product Name:alpha-naphthol CAS No.:90-15-3 Molecular Formula:
Product Number:101215 Thymidine Product Name:Thymidine CAS No.:101215-N/A Molecular Formula:
Product Number:101214 alpha-stavudine Product Name:alpha-stavudine CAS No.:84414-90-4 Molecular Formula:
Product Number:PCL-#-Qu0337-100mg Quinine Product Name:Quinine CAS No.:130-95-0 Molecular Formula:
Product Number:190240 Polyethylene glycol 200 Product Name:Polyethylene glycol 200 CAS No.:N/A Molecular Formula:
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