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39933-10-3

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39933-10-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39933-10-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,3 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39933-10:
(7*3)+(6*9)+(5*9)+(4*3)+(3*3)+(2*1)+(1*0)=143
143 % 10 = 3
So 39933-10-3 is a valid CAS Registry Number.

39933-10-3Upstream product

39933-10-3Relevant articles and documents

The Stereochemistry of Oxidation of Some B-Norsteroids

Hanson, James R.,Manickavasagar, Revathy,Thangavelu, Vasuki

, p. 3245 - 3260 (2007/10/03)

The oxidation of ring B of some B-norsteroids is shown to have a different stereochemistry when compared to the same reactions in the normal six-membered series and it is suggested that caution should be exercised in drawing general stereochemical conclusions solely on evidence from the six-membered series.

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