分子量: 分子量≈~24,000 (24 kDa) g/mol
制剂类型: 白色或淡黄色结晶或无定形粉末
纯度: 效价≥1000 USP单位/mg（不低于5.0µkatal/mg，以干品计）
储存条件: 密封、避光，于2–8°C保存
用途: 术后抗炎/伤口愈合辅助用药；辅助白内障摘除及广谱抗炎联合应用
Appearance: White or almost white lyophilized powder
Identification: A) A purple colour develops B)No purple colour develops within 3 min of mixing
Loss on Drying: Not more than 5%
Residue on ignition: No more than 2.5%
Trypsin: No more than 1%
Assay: Not less than 5.0 ukatal/mg, calculated on the dried basis
Description: White crystalline lyophilized powder
Appearance of solution: Solution S is not more opalescent than reference suspension Ⅱ
Absorbance: 1) 281nm : 18.5 ~ 22.5 2) 250nm : not more than 8.0
pH: 3.0-5.0
Histamine: Not more than 1µg/5.0µkatal

其他信息

补充描述:

Chymotrypsinogen (CAS 9035-75-0), the inactive precursor of chymotrypsin sourced from bovine or porcine pancreas, has a molecular mass of about 24,000 and an optimum pH of 8-9, remaining stable in dry form but most stable in aqueous solution at pH 3-4. Beijing Geyuantianrun Bio-Tech purifies it by recrystallization, ion exchange chromatography and ultrafiltration to high purity, and it is used clinically in wound-healing, anti-inflammatory and cataract-surgery applications as well as in veterinary medicine. It meets Chinese Pharmacopoeia, USP, BP, EP and JP standards, and is offered in food, pharmaceutical, injection and veterinary grades, sold across North America, Western Europe, Eastern Europe, Australasia, Asia and the Middle East.

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