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99701-55-0

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99701-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99701-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,0 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99701-55:
(7*9)+(6*9)+(5*7)+(4*0)+(3*1)+(2*5)+(1*5)=170
170 % 10 = 0
So 99701-55-0 is a valid CAS Registry Number.

99701-55-0Relevant articles and documents

Polymer-bound triarylphosphine-iodine complexes, convenient coupling reagent systems in peptide synthesis

Caputo,Cassano,Longobardo,Mastroianni,Palumbo

, p. 141 - 143 (2007/10/02)

N-protected α-amino acids are readily coupled with α-aminoacyl esters by polystyryl diphenylphosphine-iodine complex in very high yields and without detectable racemization. Protecting groups of general use for both amine and carboxyl functions, as well a

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