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3983-03-7

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3983-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3983-03-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,8 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3983-03:
(6*3)+(5*9)+(4*8)+(3*3)+(2*0)+(1*3)=107
107 % 10 = 7
So 3983-03-7 is a valid CAS Registry Number.
InChI:InChI=1/C10H18/c1-9(2)8-10-6-4-3-5-7-10/h6,9H,3-5,7-8H2,1-2H3

3983-03-7Relevant articles and documents

ORGANIC COMPOUNDS

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Page/Page column 5, (2009/01/24)

The present invention relates to 1-(2-isobutylcyclohex-1-enyl)but-2-en-1-one and 1-(2-isobutylcyclohex-2-enyl)but-2-en-1-one and their use as fragrance ingredient.

Enantioselective protonation of samarium enolates derived from α- heterosubstituted ketones and lactone by SmI2-mediated reduction

Nakamura, Yutaka,Takeuchi, Seiji,Ohgo, Yoshiaki,Yamaoka, Makoto,Yoshida, Akihiro,Mikami, Koichi

, p. 4595 - 4620 (2007/10/03)

SmI2-mediated reductive cleavage of α-heterosubstituents of α-alkyl or α-aryl ketones and lactone gave the corresponding 'thermodynamic samarium enolates'. Enantioselective protonation of the samarium enolates with C2- symmetric chiral diols afforded the corresponding ketones and lactone in moderate to high enantioselectivities.

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