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137956-96-8

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137956-96-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137956-96-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,5 and 6 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 137956-96:
(8*1)+(7*3)+(6*7)+(5*9)+(4*5)+(3*6)+(2*9)+(1*6)=178
178 % 10 = 8
So 137956-96-8 is a valid CAS Registry Number.

137956-96-8Downstream Products

137956-96-8Relevant articles and documents

Optically pure chiral sulfoxides using ephedrine as a chiral auxiliary

Benson, Scott C.,Snyder, John K.

, p. 5885 - 5888 (2007/10/02)

Optically pure chiral sulfoxides can be formed in good to excellent yields by sequential displacement reactions of organometallic reagents on the 1,2,3-oxathiazolidine-S-oxide formed from ephedrine and thionyl chloride, a modification of the Wudl and Lee procedure.

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