I5500
Insulin from bovine pancreas
≥25 USP units/mg (HPLC), powder
form
powder
Quality Level
specific activity
≥25 USP units/mg (HPLC)
impurities
≤0.5 EU/mg endotoxin
solubility
water: 2 mg/mL, clear, colorless (pH: 2)
cation traces
Zn: ≤1.0%
UniProt accession no.
shipped in
ambient
storage temp.
−20°C
InChI key
IXIBAKNTJSCKJM-BUBXBXGNSA-N
Gene Information
cow ... INS(280829)
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Related Categories
Biochem/physiol Actions
Other Notes
related product
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
Regulatory Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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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.
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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.
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