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501677-21-0

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501677-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 501677-21-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,1,6,7 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 501677-21:
(8*5)+(7*0)+(6*1)+(5*6)+(4*7)+(3*7)+(2*2)+(1*1)=130
130 % 10 = 0
So 501677-21-0 is a valid CAS Registry Number.

501677-21-0Downstream Products

501677-21-0Relevant articles and documents

New approaches to polysubstituted pyrroles and y-lactams based on nucleophilic addition of Ti(IV) enolates derived from α-diazo-β-keto carbonyl compounds to N-tosylimines

Dong, Changqing,Deng, Guisheng,Wang, Jianbo

, p. 5560 - 5564 (2007/10/03)

The Ti(IV) enolates derived from α-diazo-β-keto esters or ketones efficiently add to TiCl4-activated N-tosylimines to give δ-N-tosylamino substituted α-diazo-β-keto carbonyl compounds. The diazo decomposition of the addition products occurs und

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