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19912-31-3

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19912-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19912-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,1 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19912-31:
(7*1)+(6*9)+(5*9)+(4*1)+(3*2)+(2*3)+(1*1)=123
123 % 10 = 3
So 19912-31-3 is a valid CAS Registry Number.

19912-31-3Downstream Products

19912-31-3Relevant articles and documents

Peptide αthioester formation using standard Fmoc-chemistry

Von Eggelkraut-Gottanka, Regula,Klose, Annerose,Beck-Sickinger, Annette G.,Beyermann, Michael

, p. 3551 - 3554 (2003)

A highly efficient and simple Fmoc-based preparation of peptide αthioesters is presented. After Fmoc/t-butyl solid-phase synthesis on 2-chlorotrityl resin the C-terminal carboxylic group of the protected peptide is directly converted to the cor

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