The minimum purity of this material is 90%. This is a partially purified product, the lot-specific purity is published in the Certificate of Analysis. The calculated molecular weight of the A chain 5250 g/mol and the calculated molecular weight of the B chain is 5834.6 g/mol. The PI has not been determined. Additional information on the structure and sequence are available in the following publications:
Agric. Biol. Chem. 54, 2219 (1990)
https://www.jstage.jst.go.jp/article/bbb1961/54/9/54_9_2219/_article
Hoppe-Seylers Z. Physiol. Chem., Bd., 357, S. 585-592, 1976, Gerhard Frank and Herbert Zuber.
https://www.degruyterbrill.com/document/doi/10.1515/bchm2.1976.357.1.585/html?lang=en&srsltid=AfmBOorEbjl5alg1BLX6-3PhZ-l5bguqKwUQ06-OYt9bpJxLCVJoj1i6
Please see the link below to review a sample or lot-specific Certificate of Analysis:
https://www.sigmaaldrich.com/US/en/product/sigma/m7755#product-documentation



