The CAS Registry Mumber 94790-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,7,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 94790-23: (7*9)+(6*4)+(5*7)+(4*9)+(3*0)+(2*2)+(1*3)=165 165 % 10 = 5 So 94790-23-5 is a valid CAS Registry Number.
O-benzotriazolyl-N,N,N',N'-tetramethyluronium hexafluorophosphate as coupling reagent for the synthesis of peptides of biological interest
Dourtoglou,Gross
, p. 572 - 574 (2007/10/02)
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N-[N-[N-[N-[N-[(1,1-dimethylethoxy)carbonyl]-O-methyl-L-tyrosyl]-D-alanyl
]glycyl]-L-phenylalanyl]-, phenylmethyl ester