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I5500 Sigma-Aldrich

Insulin from bovine pancreas

≥25 USP units/mg (HPLC), powder

  • CAS Number 11070-73-8

  • Empirical Formula (Hill Notation) C254H377N65O75S6

  • Molecular Weight 5733.49

  •  EC Number 234-291-2

  •  MDL number MFCD00131380

  •  NACRES NA.31

Purchase

Description

Packaging

1 g in poly bottle

50, 100, 250, 500 mg in poly bottle

Biochem/physiol Actions

Two-chain polypeptide hormone produced by the β-cells of pancreatic islets. Its molecular weight is ~5800 Da. The α and β chains are joined by two interchain disulfide bonds. The α chain contains an intrachain disulfide bond. Insulin regulates the cellular uptake, utilization, and storage of glucose, amino acids, and fatty acids and inhibits the breakdown of glycogen, protein, and fat.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number

Frequently Asked Questions

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 orview 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.
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Protocols & Articles

Articles

HPLC Analysis of Insulin (Species Variants) on Ascentis® Express Phenyl-Hexyl

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Insulin (Species Variants) on Ascentis® Express Phenyl-Hexyl
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Insulin (Species Variants) on BIOshell™ A160 Peptide C18

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Insulin (Species Variants) on BIOshell™ A160 Peptide C18
Keywords: Chromatography, High performance liquid chromatography

Plasma Derived Proteins and Enzymes

Despite their complexity, blood and plasma are abundant biological resources for the discovery of drug targets and biomarkers for human disease. It is estimated that plasma may contain as many as 40,...
BioFiles 2006, 1.5, 2.
Keywords: Applications, Gas chromatography, Type

Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection

Insulin is an approximately 6000 Da peptide hormone used to regulate the glucose concentration in blood. There are several different forms of insulin that are both natural and recombinant; the recomb...
Cory Muraco, Stacy Shollenberger, and Hillel Brandes
MilliporeSigma, Bellefonte, PA USA
Keywords: Chromatography, High performance liquid chromatography, Hormones, Mass spectrometry, Pharmaceutical, Phase transitions, Reversed-phase chromatography, Separation

Peer-Reviewed Papers
15

References

Related Products

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Product #

Description

Add to Cart

I0516 Insulin solution from bovine pancreas, BioReagent, 10 mg/mL insulin in 25  mM HEPES, pH 8.2, sterile-filtered, suitable for cell culture
I1882 Insulin from bovine pancreas, γ-irradiated, BioXtra, suitable for cell culture, potency: ≥20 units/mg (USP units), lyophilized powder
06693 Timestrip Plus -20 °C
I9278 Insulin solution human, sterile-filtered, BioXtra, suitable for cell culture

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