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64605-62-5

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64605-62-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64605-62-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,6,0 and 5 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 64605-62:
(7*6)+(6*4)+(5*6)+(4*0)+(3*5)+(2*6)+(1*2)=125
125 % 10 = 5
So 64605-62-5 is a valid CAS Registry Number.

64605-62-5Downstream Products

64605-62-5Relevant articles and documents

REACTIVITY OF CARBANIONS. XXII. REACTIONS OF ALKALI-METAL SALTS OF CH ACIDS WITH 9-ACETYL-9-CYANOFLUORENE

Solov'yanov, A. A.,Gulyukina, N. S.,Beletskaya, I. P.,Reutov, O. A.

, p. 209 - 212 (2007/10/02)

The reactions of the lithium and cesium derivatives of 9-methyl-, 9-benzyl-, 9-phenyl-, and 9-methoxycarbonylfluorene, 1,3-diphenylindene, and fluoradene with 9-acetyl-9-cyanofluorene in 1,2-dimethoxyethane take place by a mechanism of nucleophilic substitution at the carbonyl group and lead to the formation of the products from acylation of the carbanions and the corresponding alkali-metal salts of 9-cyanofluorene.If there is a small difference between the pKa value of the CH acid conjugate with the carbanion reagent and the pKa value of 9-cyanofluorene, it is possible to measure the equilibrium constant of the reaction.

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