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105615-49-4

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105615-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105615-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,6,1 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 105615-49:
(8*1)+(7*0)+(6*5)+(5*6)+(4*1)+(3*5)+(2*4)+(1*9)=104
104 % 10 = 4
So 105615-49-4 is a valid CAS Registry Number.

105615-49-4Relevant articles and documents

THE HIGHLY STEREOSELECTIVE SYNTHESIS OF ALL-TRANS AND 13-CIS VITAMIN A VIA DOUBLE ELIMINATION REACTION

Otera, Junzo,Misawa, Hiromitsu,Mandai, Tadakatsu,Onishi, Takashi,Suzuki, Shigeaki,Fujita, Yoshiji

, p. 1883 - 1886 (1985)

Stereocontrolled convergent synthesis of vitamin A was achieved by the double elimination method employing the C10 sulfone and the C10 aldehydes as starting materials.Thus the all-trans and 13-cis isomers were obtained with the stereochemical purity of 95percent and 90percent, respectively.

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