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1235544-21-4

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1235544-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1235544-21-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,5,5,4 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1235544-21:
(9*1)+(8*2)+(7*3)+(6*5)+(5*5)+(4*4)+(3*4)+(2*2)+(1*1)=134
134 % 10 = 4
So 1235544-21-4 is a valid CAS Registry Number.

1235544-21-4Downstream Products

1235544-21-4Relevant articles and documents

Chemical protein synthesis by kinetically controlled ligation of peptide O-esters

Zheng, Ji-Shen,Cui, Hong-Kui,Fang, Ge-Min,Xi, Wei-An,Liu, Lei

scheme or table, p. 511 - 515 (2010/12/25)

(Chemical Equation Presented) Designer peptides: A large reactivity difference was observed between two peptide O-esters that can undergo peptide ligation through an situ O-to-S acyl shift. This observation allowed the designed of "one-pot" N-to-C sequential peptide fragment condensation through kinetically controlled ligation with more readily accessible peptide O-esters.

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