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138296-31-8

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138296-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138296-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,9 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138296-31:
(8*1)+(7*3)+(6*8)+(5*2)+(4*9)+(3*6)+(2*3)+(1*1)=148
148 % 10 = 8
So 138296-31-8 is a valid CAS Registry Number.

138296-31-8Downstream Products

138296-31-8Relevant articles and documents

A base labile protecting group for peptide synthesis: 2,2,-Bis(4'-nitrophenyl)ethan-1-oxycarbonyl urethanes

Ramage,Blake,Florence,Gray,Raphy,Roach

, p. 8001 - 8024 (2007/10/02)

A base labile urethane (Bnpeoc) group derived from 2,2,-bis(4'-nitrophenyl)ethan-1-ol has been developed as an amine protecting group. This protecting group may be cleaved using the reagents DBN, DBU, DBU/HOAc and piperidine. The preparations of N(α)-Bnpeoc amino acids and applications to peptide/glycopeptide synthesis are described.

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