sigma I-5500牛胰岛素Insulin

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Product Name Insulin from bovine pancreas,≥27 USP units/mg (HPLC), powder Product Number I5500 Product Brand SIAL CAS Number 11070-73-8 Molecular Weight 5733.49 Storage Temp −20°C

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TEST SPECIFICATION
APPEARANCE WHITE TO OFF-WHITE POWDER
SOLUBILITY CLEAR COLORLESS SOLUTION AT 2MG PLUS 1ML WATER (PH ADJUSTED TO 2.0 WITH HYDROCHLORIC ACID)
ELEMENTAL ANALYSIS * 14.5 TO 16.0% NITROGEN
APPROX. 0.5% ZINC
LOSS ON DRYING NMT 10%
HPLC POTENCY * NLT 27 USP UNITS/MG
RECOMMENDED RETEST 2 YEARS
NOTE * DRY BASIS
DOCUMENT # I5500/11/08/99/6
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