Commercial Supply PF-07321332 Paxlovid Related Intermediates with High Quality
L-tert-Leucine (H-Tle-OH) CAS 20859-02-3
Caronic Anhydride CAS 67911-21-1
(1R,2S,5S)-6,6-Dimethyl-3-azabicyclo[3.1.0]hexane-2-Carboxylic Acid Methyl Ester Hydrochloride 565456-77-1
Methyl (S)-2-(Boc-amino)-3-[(S)-2-oxo-3-pyrrolidinyl]propanoate CAS 328086-60-8
6,6-Dimethyl-3-azabicyclo[3.1.0]hexane CAS 943516-54-9
| 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 |
| Loss on Drying | ≤0.50% |
| Residue on Ignition | ≤0.20% |
| Single Impurity | ≤0.50% |
| Total Impurities | ≤2.0% |
| Purity / Analysis Method | ≥98.0% (GC) |
| Heavy Metals (Pb) | ≤20ppm |
| 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.