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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:101175 Sulfapyridine Product Name:Sulfapyridine CAS No.:144-83-2 Molecular Formula:
Product Number:101174 Etidronate disodium Product Name:Etidronate disodium CAS No.:101174-N/A Molecular Formula:
Product Number:PCL-#-Di993-100mg 3,5-Dinitrobenzoic acid Product Name:3,5-Dinitrobenzoic acid CAS No.:99-34-3 Molecular Formula:
Product Number:101173 Ethyl methyl 2,6-dimethyl-4-(2,3-dichlorophenyl)-3,5-pyridinedicarboxylate (Felodipine impurity I) Product Name:Ethyl methyl 2,6-dimethyl-4-(2,3-dichlorophenyl)-3,5-pyridinedicarboxylate (Felodipine impurity I) CAS No.:101173-N/A Molecular Formula:
Product Number:510150 Trazodone hydrochloride impurity F hydrochloride Product Name:Trazodone hydrochloride impurity F hydrochloride CAS No.:# Molecular Formula:
Product Number:101171 Benzenesulfonium atracurium monoquaternary ammonium salt Product Name:Benzenesulfonium atracurium monoquaternary ammonium salt CAS No.:101171-N/A Molecular Formula:
Product Number:140739 Phenylacetylglutamine Product Name:Phenylacetylglutamine CAS No.:# Molecular Formula:
Product Number:101170 benzenesulfonium atracurium Product Name:benzenesulfonium atracurium CAS No.:96946-42-8 Molecular Formula:
Product Number:140727 Desmopressin acetate Product Name:Desmopressin acetate CAS No.:# Molecular Formula:
Product Number:140726 Ethyl eicosapentaenoate Product Name:Ethyl eicosapentaenoate CAS No.:# Molecular Formula:
Product Number:510118 Falafloxacin Hydrochloride Product Name:Falafloxacin Hydrochloride CAS No.:# Molecular Formula:
Product Number:140725 Ethyl docosahexaenoate Product Name:Ethyl docosahexaenoate CAS No.:# Molecular Formula:
Product Number:510119 Sulfadoxine Product Name:Sulfadoxine CAS No.:2447-57-6 Molecular Formula:
Product Number:140724 Deoxyribonucleic acid Product Name:Deoxyribonucleic acid CAS No.:# Molecular Formula:
Product Number:510116 Olanzapine impurity C Product Name:Olanzapine impurity C CAS No.:# Molecular Formula:
Product Number:140723 gamma-Aminotyrosine Product Name:gamma-Aminotyrosine CAS No.:# Molecular Formula:
Product Number:PCL-#-En106-100mg Enrofloxacin Product Name:Enrofloxacin CAS No.:93106-60-6 Molecular Formula:
Product Number:510114 Acemetacin impurity E Product Name:Acemetacin impurity E CAS No.:# Molecular Formula:
Product Number:140721 Squalene Product Name:Squalene CAS No.:111-02-4 Molecular Formula:
Product Number:510115 Acemetacin impurity F Product Name:Acemetacin impurity F CAS No.:# Molecular Formula:
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