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188990-04-7

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188990-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188990-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,9,9 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188990-04:
(8*1)+(7*8)+(6*8)+(5*9)+(4*9)+(3*0)+(2*0)+(1*4)=197
197 % 10 = 7
So 188990-04-7 is a valid CAS Registry Number.

188990-04-7Relevant articles and documents

Synthesis of conformationally constrained phenylalanine analogues via 7-, 8- and 9-endo Heck cyclisations

Gibson, Susan E.,Guillo, Nathalie,Middleton, Richard J.,Thuilliez, Audrey,Tozer, Matthew J.

, p. 447 - 455 (2007/10/03)

The novel conformationally constrained phenylalanine analogues 2,3,4,5-tetrahydro-1H-3-benzazepine-2-carboxylic acid (Sic) 1, 1,2,3,4,5,6-hexahydro-3-benzazocine-2-carboxylic acid (Hic) 2 and 2,3,4,5,6,7-hexahydro-1H-3-benzazonine-2-carboxylic acid (Nic)

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