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193539-57-0

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193539-57-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193539-57-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,5,3 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 193539-57:
(8*1)+(7*9)+(6*3)+(5*5)+(4*3)+(3*9)+(2*5)+(1*7)=170
170 % 10 = 0
So 193539-57-0 is a valid CAS Registry Number.

193539-57-0Relevant articles and documents

Applications of highly enantioenriched alcohols bearing a phenylthio group in the preparation of ring compounds. The two-pot synthesis of an enantiopure spiroacetal pheromone bearing three chiral centers

Cohen, Theodore,Tong, Shaojing

, p. 9487 - 9496 (2007/10/03)

The new chiron (S)-6-phenylthio-2-hexanol (3) was prepared in high enantiomeric excess by baker's yeast reduction of the corresponding ketone. Enantioenriched alcohols 1, 2 and 3, prepared previously by a similar procedure, or their racemic counterparts, were transformed into ring closed compounds 5-methyl-2-(phenylthio)tetrahydrofuran (9), 6-methyl-2- (phenylthio)tetrahydropyran (10), 2-methyl-1-phenylsulfonyl cyclopropane (14), cyclobutane (15), cyclopentane (16), and a bee pheromone, (2S,6R,8S)- 2,8-dimethyl-1,7-dioxaspiro[5.5]undecane (20).

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