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721391-52-2

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721391-52-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 721391-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,1,3,9 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 721391-52:
(8*7)+(7*2)+(6*1)+(5*3)+(4*9)+(3*1)+(2*5)+(1*2)=142
142 % 10 = 2
So 721391-52-2 is a valid CAS Registry Number.

721391-52-2Upstream product

721391-52-2Relevant articles and documents

Synthesis and ion channel formation of novel cyclic peptides containing a non-natural amino acid

Ishida, Hitoshi,Donowaki, Kiyoshi,Inoue, Yoshihisa,Qi, Zhi,Sokabe, Masahiro

, p. 953 - 954 (1997)

A series of novel cyclic peptides possessing an alternate natural / non-natural amino acid sequence were prepared from L-alanine and 5-(N-acylamino)-3-aminobenzoic acid with a long acyl chain. Upon examination by the voltage clamp method, membranes compos

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