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161970-63-4

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161970-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161970-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,7 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 161970-63:
(8*1)+(7*6)+(6*1)+(5*9)+(4*7)+(3*0)+(2*6)+(1*3)=144
144 % 10 = 4
So 161970-63-4 is a valid CAS Registry Number.

161970-63-4Upstream product

161970-63-4Relevant articles and documents

Stereoselective total synthesis of topographically constrained designer amino acids: 2',6'-dimethyl-β-methyltyrosines

Qian,Russell,Boteju,Hruby

, p. 1033 - 1054 (1995)

The constrained aromatic α-amino acid 2',6'-dimethyl-β-methyl tyrosine (Figure 1) was designed to provide specific local constraints to peptides or peptide mimetics. We report here methods for the total asymmetric synthesis of all four stereoisomers. The

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