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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:121593 Cat's claw Product Name:Cat's claw CAS No.:# Molecular Formula:
Product Number:410007 E.coli host cell DNA residue detection kit (PCR-fluorescent probe method) Product Name:E.coli host cell DNA residue detection kit (PCR-fluorescent probe method) CAS No.:# Molecular Formula:
Product Number:121528 Maitre d'Or Product Name:Maitre d'Or CAS No.:# Molecular Formula:
Product Number:121558 Tanner's Peel Charcoal Product Name:Tanner's Peel Charcoal CAS No.:# Molecular Formula:
Product Number:110844 2,3,5,4'-Tetrahydroxystilbene-2-O-beta-D glucoside Product Name:2,3,5,4'-Tetrahydroxystilbene-2-O-beta-D glucoside CAS No.:82373-94-2 Molecular Formula:
Product Number:140737 5'-hydroxyindoleacetic acid Product Name:5'-hydroxyindoleacetic acid CAS No.:# Molecular Formula:
Product Number:140736 4'-hydroxyphenylacetic acid Product Name:4'-hydroxyphenylacetic acid CAS No.:156-38-7 Molecular Formula:
Product Number:140735 5'-cytidylic acid Product Name:5'-cytidylic acid CAS No.:63-37-6 Molecular Formula:
Product Number:510105 N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)medenosine Product Name:N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)medenosine CAS No.:139504-50-0 Molecular Formula:
Product Number:100764 Dipivefrine hydrochloride precursor ［(±)3,4-dihydroxy-2'-methylaminoacetophenone-3,4-dipivalate perchlorate] Product Name:Dipivefrine hydrochloride precursor ［(±)3,4-dihydroxy-2'-methylaminoacetophenone-3,4-dipivalate perchlorate] CAS No.:100764-N/A Molecular Formula:
Product Number:121610 earth cow's knees Product Name:earth cow's knees CAS No.:# Molecular Formula:
Product Number:101256 4,4'-Bis-(3-methyl-1-phenyl-5-pyrazolone) (edaravone impurity) Product Name:4,4'-Bis-(3-methyl-1-phenyl-5-pyrazolone) (edaravone impurity) CAS No.:7477-67-0 Molecular Formula:
Product Number:101224 3'-Chloro-3'-deoxythymidine (Zidovudine impurity) Product Name:3'-Chloro-3'-deoxythymidine (Zidovudine impurity) CAS No.:101224-N/A Molecular Formula:
Product Number:140815 2',3'-Anhydroinosine Product Name:2',3'-Anhydroinosine CAS No.:31766-13-9 Molecular Formula:
Product Number:140814 2'-Deoxyinosine Product Name:2'-Deoxyinosine CAS No.:890-38-0 Molecular Formula:
Product Number:140813 3'-Deoxyinosine Product Name:3'-Deoxyinosine CAS No.:13146-72-0 Molecular Formula:
Product Number:140816 2',3'-dideoxy-2',3'-didehydroinosine Product Name:2',3'-dideoxy-2',3'-didehydroinosine CAS No.:42867-68-5 Molecular Formula:
Product Number:121346 Crow's gall Product Name:Crow's gall CAS No.:# Molecular Formula:
Product Number:111912 Xavier's Tapestry Product Name:Xavier's Tapestry CAS No.:51938-32-0 Molecular Formula:
Product Number:120933 Buddha's hand Product Name:Buddha's hand CAS No.:# Molecular Formula:
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