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138943-65-4

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138943-65-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138943-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,4 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138943-65:
(8*1)+(7*3)+(6*8)+(5*9)+(4*4)+(3*3)+(2*6)+(1*5)=164
164 % 10 = 4
So 138943-65-4 is a valid CAS Registry Number.

138943-65-4Downstream Products

138943-65-4Relevant articles and documents

Palladium-Catalyzed Carbonylative Cross-Coupling Reaction of Iodoalkaneswith 9-Alkyl-9-BBN Derivatives. A Direct and Selective Synthesis of Ketones

Ishiyama, Tatsuo,Miyaura, Norio,Suzuki, Akira

, p. 6923 - 6926 (1991)

The synthesis of unsymmetrical ketones by means of the palladium-catalyzed carbonylative cross-coupling reaction of 9-alkyl-9-BBN derivatives with iodoalkanes under a carbon monoxide atmosphere is described.

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