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138298-52-9

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138298-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138298-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,9 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138298-52:
(8*1)+(7*3)+(6*8)+(5*2)+(4*9)+(3*8)+(2*5)+(1*2)=159
159 % 10 = 9
So 138298-52-9 is a valid CAS Registry Number.

138298-52-9Relevant articles and documents

Stereoselective palladium-catalyzed cyclopropanation of α,β-unsaturated carboxylic acids derivatized with Oppolzer's sultam

Vallgarda,Hacksell

, p. 5625 - 5628 (2007/10/02)

N-enoyl sultans, derived from α,β-unsaturated carboxylic acids and bornane[10,2]sultam, undergo a stereoselective Pd-catalyzed cyclopropanation upon treatment with diazomethane. The stereoselectivity of the reaction is temperature dependent.

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