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1042988-81-7

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1042988-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1042988-81-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,2,9,8 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1042988-81:
(9*1)+(8*0)+(7*4)+(6*2)+(5*9)+(4*8)+(3*8)+(2*8)+(1*1)=167
167 % 10 = 7
So 1042988-81-7 is a valid CAS Registry Number.

1042988-81-7Relevant articles and documents

Aluminum-catalyzed asymmetric alkylations of pyridyl-substituted alkynyl ketones with dialkylzinc reagents

Friel, Donna K.,Snapper, Marc L.,Hoveyda, Amir H.

supporting information; experimental part, p. 9942 - 9951 (2009/02/04)

Alkylations of pyridyl-substituted ynones with Et2Zn and Me 2Zn, promoted by amino acid-based chiral ligands in the presence of Al-based alkoxides, afford tertiary propargyl alcohols efficiently in 57% to >98% ee. Two easily accessib

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