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1263102-67-5

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1263102-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1263102-67-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,1,0 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1263102-67:
(9*1)+(8*2)+(7*6)+(6*3)+(5*1)+(4*0)+(3*2)+(2*6)+(1*7)=115
115 % 10 = 5
So 1263102-67-5 is a valid CAS Registry Number.

1263102-67-5Upstream product

1263102-67-5Downstream Products

1263102-67-5Relevant articles and documents

Stereoselective construction of a steroid 5α,7α-oxymethylene derivative and its use in the synthesis of eplerenone

Zhang, Bin,Chen, Hongli,Feng, Huijin,Li, Yuanchao

, p. 56 - 59 (2011)

A new and practical method for a stereoselective construction of a steroid 5α,7α-oxymethylene derivative has been developed and successfully applied to the stereoselective synthesis of eplerenone (8). Starting with available 11α-hydroxyl canrenone (1), eplerenone (8) was synthesised in seven steps with a 48% overall yield.

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