推荐产品
形式
powder
质量水平
比活
≥25 USP units/mg (HPLC)
杂质
≤0.5 EU/mg endotoxin
溶解性
water: 2 mg/mL, clear, colorless (pH: 2)
痕量阳离子
Zn: ≤1.0%
UniProt登记号
运输
ambient
储存温度
−20°C
InChI key
IXIBAKNTJSCKJM-BUBXBXGNSA-N
基因信息
cow ... INS(280829)
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相关类别
应用
- Cross-frontal mode: An alternative methodology for Taylor dispersion analysis of monomodal sample.: This research presents a novel methodology for Taylor dispersion analysis, which could be applied to the study of insulin dispersion and its implications in biochemical research (Gouyon et al., 2023).
生化/生理作用
其他说明
相关产品
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
What is the comparison between International Units (IU) and USP units for insulin?
The international unit (IU) of insulin is based on the International Standard Preparation of Bioassay (1958). The standard preparation is a mixture of 52% bovine and 48% porcine insulin, containing 24 units/mg. Reference: Martindale: The Extra Pharmacopoeia, 29th ed., p. 392. High purity bovine pancreatic insulin typically assays at approximately 27 USP units per mg. So the IU and USP unit are not identical, but they are approximately 1:1.
What can be used to make a solution of insulin?
Insulin is soluble in dilute acids and alkalis. The solubility of insulin is tested at 2 mg/mL in water (acidified to pH 2 with hydrochloric acid). One can also use 1 mL of water acidified to pH 2 with 10 μL of glacial acetic acid to dissolve 2 mg of insulin. A 10 mg/mL solution of bovine insulin in 25 mM HEPES at pH 8.2 is offered as Product No. I0516.
How can I store the insulin solution? How long?
The USP recommends that solutions of insulin be stored at 2-8°C. It is not recommended to freeze solutions of insulin, as it can aggregate. Sterile solutions should be stable for at least 1 year at 2-8°C.
What is the amino acid sequence for insulin?
The sequence and structure of insulin can be found on the product information sheet (under Documents, above).
How many units of insulin are present in my vial of Product I5500, Insulin from bovine pancreas?
Product No. I5500 has a specification of not less than 27 USP units/mg. The exact value for the product received can be found the on lot-specific Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
My question is not addressed here, how can I contact Technical Service for assistance?
Ask a Scientist here.
实验方案
Chromatographic technique identifies insulin variants efficiently, aiding in pharmacokinetics.
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