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250583-08-5

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250583-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250583-08-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,5,8 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 250583-08:
(8*2)+(7*5)+(6*0)+(5*5)+(4*8)+(3*3)+(2*0)+(1*8)=125
125 % 10 = 5
So 250583-08-5 is a valid CAS Registry Number.

250583-08-5Relevant articles and documents

Preparation of endothelin antagonist ABT-627

Wittenberger, Steven J.,McLaughlin, Maureen A.

, p. 7175 - 7178 (2007/10/03)

An enantioselective synthesis of ABT-627 is described. The key transformation is a diastereoselective 6-endo-trig cyclization to produce a 3,4,5-trisubstituted-1,2-oxazine which is ring contracted to the 2,3,4-tri-substituted-pyrrolidine core of ABT-627.

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