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501954-69-4

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501954-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 501954-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,9,5 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 501954-69:
(8*5)+(7*0)+(6*1)+(5*9)+(4*5)+(3*4)+(2*6)+(1*9)=144
144 % 10 = 4
So 501954-69-4 is a valid CAS Registry Number.

501954-69-4Relevant articles and documents

Toward the assignment of liposidomycin stereochemistry: Synthesis of 1,4-diazepan-3-one analogues by reductive amination approach

Nakajima, Noriyuki,Isobe, Takahiro,Irisa, Shiro,Ubukata, Makoto

, p. 107 - 113 (2007/10/03)

Toward the assignment of liposidomycin stereochemistry, a stereocontrolled synthesis of the liposidomycin diazepanone ring system and two precursors, has been achieved. The NMR coupling constants of a 5-phenyl model compound closely related to the liposidomycin diazepanone degradation product.

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