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31357-83-2

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31357-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31357-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31357-83:
(7*3)+(6*1)+(5*3)+(4*5)+(3*7)+(2*8)+(1*3)=102
102 % 10 = 2
So 31357-83-2 is a valid CAS Registry Number.

31357-83-2Relevant articles and documents

On the regio and stereo selective formylations of acyclic alpha methylene ketones towards Vilsmeier Haack reagent

Chakraborty,Ray

, p. 1869 - 1876 (1995)

The regio and stereo selectivities of Vilsmeier Haack reaction of ketomethylene compounds have been predicted. The possible mechanistic pathway has also been proposed.

NOVEL THIOPHENE DERIVATIVES

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Page/Page column 21-22, (2010/11/25)

The invention relates to novel thiophene derivatives, their preparation and their use as pharmaceutically active compounds. Said compounds particularly act as immunosuppressive agents.

Preparation of Monoacetals of β-Dicarbonyl Compounds

Huet, Francois

, p. 496 - 497 (2007/10/02)

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