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81380-12-3

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81380-12-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81380-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,8 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81380-12:
(7*8)+(6*1)+(5*3)+(4*8)+(3*0)+(2*1)+(1*2)=113
113 % 10 = 3
So 81380-12-3 is a valid CAS Registry Number.

81380-12-3Relevant articles and documents

Total synthesis of N-phthaloyl adda methyl ester: All stereocenters originating from a single chiral epoxyalcohol

Chakraborty,Joshi

, p. 2043 - 2046 (2007/10/02)

Selective ring opening of (2S,3R)-epoxide of 4-benzyloxy-cis-2-buten-1-ol either at 2- or 3-position ensures stereospecific construction of all the chiral centers of Adda.

SYNTHESIS AND ABSOLUTE STEREOCHEMISTRY OF SERRICORNIN

Mori, Kenji,Nomi, Hiroko,Chuman, Tatsuji,Kohno, Masahiro,Kato, Kunio,Noguchi, Masao

, p. 3705 - 3712 (2007/10/02)

The absolute stereochemistry of serricornin (4,6-dimethyl-7-hydroxy-3-nonanone) was established as 4S, 6S, 7S by synthesizing both (4S, 6S, 7S)-isomer and its antipode.Only the natural enantiomer was bioactive.by

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