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121740-51-0

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121740-51-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121740-51-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,4 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121740-51:
(8*1)+(7*2)+(6*1)+(5*7)+(4*4)+(3*0)+(2*5)+(1*1)=90
90 % 10 = 0
So 121740-51-0 is a valid CAS Registry Number.

121740-51-0Relevant articles and documents

Synthesis of 1,4-Thiazepine Derivatives Having Angiotensin-Converting Enzyme Inhibitory Property

Yanagisawa, Hiroaki,Ishihara, Sadao,Ando, Akiko,Kanazaki, Takuro

, p. 137 - 140 (2007/10/02)

Reduction of (6R)-6-amino-6,7-dihydro-2-thienyl-1,4-thiazepin-5(4H)-one derivatives with Mg-MeOH gave the corresponding perhydrothiazepinones.Protection with trityl group at the 6-amino group gave predominantly the 2S,6R isomer which was converted to the

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