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108888-39-7

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108888-39-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108888-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,8,8 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 108888-39:
(8*1)+(7*0)+(6*8)+(5*8)+(4*8)+(3*8)+(2*3)+(1*9)=167
167 % 10 = 7
So 108888-39-7 is a valid CAS Registry Number.

108888-39-7Downstream Products

108888-39-7Relevant articles and documents

PREMIERE SYNTHESE TOTALE DE L'ALLIODORINE. PREPARATION D'ALDEHYDES ISOPRENIQUES E A PARTIR DES METHYL-2 OXO-6 HEXENE-2 (E + Z) CARBONITRILES-1.

Tortajada, J.,Morizur, J-P.

, p. 253 - 262 (2007/10/02)

The first synthesis of alloiodorine 4EE, a constituent isolated from the duramen of a tropical tree: Cordia alliodora is reported.A mixture of E and Z isomers of 2-methyl-6-oxo-2-heptenenitrile 3 easily accesible by U.V. irradiation of 1-methyl-2-oxo-cyclopentanecarbonitrile 2 is used as starting material.E/Z isomerism is suppressed during a step of the synthesis reduction of the α,β-unsaturated nitrile function (E + Z) in the α,β-unsaturated aldehyde E ( the Z -> E isomerisation occurs during the hydrolysis of the internediate imine).The synthesis was conducted in six steps with an overall yield of 12,5percent from 1-methyl-2-oxo-cyclopentanecarbonitrile 2.

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