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457885-41-5

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457885-41-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457885-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,8,8 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 457885-41:
(8*4)+(7*5)+(6*7)+(5*8)+(4*8)+(3*5)+(2*4)+(1*1)=205
205 % 10 = 5
So 457885-41-5 is a valid CAS Registry Number.

457885-41-5Relevant articles and documents

A sequential metal-catalyzed C-N bond formation in the synthesis of 2-amido-indoles

Yao, Pei-Yuan,Zhang, Yu,Hsung, Richard P.,Zhao, Kang

supporting information; experimental part, p. 4275 - 4278 (2009/05/30)

(Chemical Equation Presented) A sequential metal-catalyzed C-N bond formation employing ortho-haloaryl acetylenic bromides is described. The initial amidation is highly selective for C8P-N bond formation, leading to o-haloaryl-substiluted ynami

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