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188548-07-4

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188548-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188548-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,4 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 188548-07:
(8*1)+(7*8)+(6*8)+(5*5)+(4*4)+(3*8)+(2*0)+(1*7)=184
184 % 10 = 4
So 188548-07-4 is a valid CAS Registry Number.

188548-07-4Relevant articles and documents

Synthesis of 2-substituted 4methyleneglutamic acids and their cyclopropyl analogues

Guillena, Gabriela,Micoe, Irene,Najera, Carmen,Ezquerra, Jesus,Pedregal, Concepcioen,Ezquerra,Pedregal

, p. 362 - 369 (2007/10/03)

The alkylation of the dianion 10 derived from ethyl 4-methylenepyroglutamate (9) allows the synthesis of 2-substituted 4-methylenepyroglutamates 12, after final W-Boc protection. They can also be prepared by alkylation at the 2-position of dianion 14 deri

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