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40195-49-1

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40195-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40195-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,9 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40195-49:
(7*4)+(6*0)+(5*1)+(4*9)+(3*5)+(2*4)+(1*9)=101
101 % 10 = 1
So 40195-49-1 is a valid CAS Registry Number.

40195-49-1Downstream Products

40195-49-1Relevant articles and documents

Use ofcerium(III) chloride in the reactions of carbonyl compounds with organolithiums or grignard reagents for the suppression of abnormal reactions:1-butyl-1,2,3,4-tetrahydro-1-naphthol

Takeda, Nobuhiro,Imamoto, Tsuneo

, p. 228 - 228 (2017/09/30)

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Reactions of Carbonyl Compounds with Grignard Reagents in the Presence of Cerium Chloride

Imamoto, Tsuneo,Takiyama, Noboyuki,Nakamura, Kimikazu,Hatajima, Toshihiko,Kamiya, Yasuo

, p. 4392 - 4398 (2007/10/02)

The addition of Grignard reagents to ketones is significantly enhanced by cerium chloride with remarkable supression of side reactions, particularly enolization.Some esters, which are prone to side reactions, also react readily with Grignard reagents in the presence of cerium chloride to give normal reaction products in reasonable to high yields.

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