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142955-48-4

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142955-48-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142955-48-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,5 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 142955-48:
(8*1)+(7*4)+(6*2)+(5*9)+(4*5)+(3*5)+(2*4)+(1*8)=144
144 % 10 = 4
So 142955-48-4 is a valid CAS Registry Number.

142955-48-4Relevant articles and documents

N-Alkoxycarbonyl Amino Acid N-Carboxyanhydrides and N,N-Dialkoxycarbonyl Amino Acid Fluorides from N,N-Diprotected Amino Acids

Savrda, J.,Wakselman, M.

, p. 812 - 813 (2007/10/02)

Activation of N,N-bis-Boc or N-Boc N-Z amino acids with SOCl2-DMF leads to N-protected N-carboxy amino acid anhydrides, whereas treatment with cyanuric fluoride at low temperature gives mainly N,N-bis-protected amino acid fluorides, which are efficient ac

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