Best Price on Ethyl (S)-4-Chloro-3-hydroxybutyrate - Caronic Anhydride CAS 67911-21-1 PF-07321332 Boceprevir Intermediate High Quality – Ruifu

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All we do is always involved with our tenet " Consumer initial, Trust first, devoting within the food stuff packaging and environmental defense for Atazanavir CAS 198904-31-3, (S)-4-Chloro-3-hydroxybutyronitrile, Molecular Formula C7H6O2, Sincerely hope to build long term business relationships with you and we will do our best service for you.

Best Price on Ethyl (S)-4-Chloro-3-hydroxybutyrate - Caronic Anhydride CAS 67911-21-1 PF-07321332 Boceprevir Intermediate High Quality – Ruifu Detail:

Commercial Supply Related Intermediates with High Quality

Chemical Name	Caronic Anhydride
Synonyms	6,6-Dimethyl-3-oxabicyclo[3.1.0]hexane-2,4-dione; 3,3-Dimethyl-1,2-cyclopropanedicarboxylic Anhydride
CAS Number	67911-21-1
CAT Number	RF-PI315
Stock Status	In Stock, Production Scale Up to Tons Every Month
Molecular Formula	C7H8O3
Molecular Weight	140.14
Melting Point	53.0~57.0℃
Boiling Point	246°C
Flashing Point	113°C
Density	1.274 g/mL at 25°C
Solubility	Soluble in Methanol
Storage and Sensitivity	Moisture Sensitive. Store Under Nitrogen. Ambient Temperatures.
Brand	Ruifu Chemical

Item	Specifications
Appearance	White or Almost White Crystal Powder
Residue on Ignition	≤0.20%
Single Impurity	≤0.50%
Purity / Analysis Method	≥98.0% (GC)
Test Standard	Enterprise Standard
Usage	Intermediate of PF-07321332 Paxlovid (CAS 2628280-40-8) and Boceprevir (CAS 394730-60-0)

Package: Bottle, Aluminum foil bag, Cardboard drum, 25kg/Drum, or according to customer’s requirement.

Storage Condition: Store in sealed containers at cool and dry place; Protect from light, moisture and pest infestation.

Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Caronic Anhydride (CAS: 67911-21-1) with high quality, widely used in organic synthesis, synthesis of pharmaceutical intermediates and Active Pharmaceutical Ingredient (API) synthesis. Caronic Anhydride is the key intermediate of PF-07321332 Paxlovid (CAS 2628280-40-8) and Boceprevir (CAS 394730-60-0). PF-07321332 is a potent and orally active SARS-CoV 3C-like protease (3CLPRO) inhibitor developed by Pfizer. PF-07321332 targets to the SARS-CoV-2 virus and can be used for COVID-19 reseacrch. Boceprevir is an NS3 serine protease inhibitor of hepatitis C virus, for the treatment of HCV infection.

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