Cas 1200440-34-1,neopentyl 4-(2-thienyl)benzenesulfonate

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Check Digit Verification of cas no

The CAS Registry Mumber 1200440-34-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,0,4,4 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1200440-34:
(9*1)+(8*2)+(7*0)+(6*0)+(5*4)+(4*4)+(3*0)+(2*3)+(1*4)=71
71 % 10 = 1
So 1200440-34-1 is a valid CAS Registry Number.

1200440-34-1Upstream product

1200440-34-1Downstream Products

16939-04-1 2-p-tolylthiophene

1200440-34-1Relevant articles and documents

Nickel N-heterocyclic carbene catalyst for cross-coupling of neopentyl arenesulfonates with methyl and primary alkyl Grignard reagents

Kim, Chul-Bae,Jo, Hyunjong,Ahn, Bo-Kyoung,Kim, Chang Keun,Park, Kwangyong

, p. 9566 - 9569 (2009)

(Chemical Equation Presented) Nickel N-heterocyclic carbene (NHC) catalytic system prepared in situ by the reaction of Ni(acac)2 with NHC precursor efficiently catalyzed the cross-coupling reaction of alkoxysulfonylarenes with methyl, neopentyl

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1200440-34-1