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334775-31-4

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334775-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 334775-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,4,7,7 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 334775-31:
(8*3)+(7*3)+(6*4)+(5*7)+(4*7)+(3*5)+(2*3)+(1*1)=154
154 % 10 = 4
So 334775-31-4 is a valid CAS Registry Number.

334775-31-4Relevant articles and documents

Enantioselective synthesis of (+)-α-vetivone through the Michael reaction of chiral imines

Revial, Gilbert,Jabin, Ivan,Pfau, Michel

, p. 4975 - 4983 (2000)

(+)-α-Vetivone has been synthesised in nine steps. The absolute stereochemistry of the two stereogenic centres is controlled in the same key step involving the stereoselective Michael addition of a chiral imine of 4-isopropylidene-2-methylcyclohexanone to phenyl crotonate.

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