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21850-14-6

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21850-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21850-14-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 0 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21850-14:
(7*2)+(6*1)+(5*8)+(4*5)+(3*0)+(2*1)+(1*4)=86
86 % 10 = 6
So 21850-14-6 is a valid CAS Registry Number.

21850-14-6Relevant articles and documents

Phthalocyanines and related compounds: XLI. Synthesis of 9,10-diphenylanthracene-2,3-dicarboxylic acid derivatives

Donyagina,Kovshev,Luk'yanets

, p. 654 - 658 (2008/02/07)

Derivatives of 9,10-diphenylanthracene-2,3-dicarboxylic acid were synthesized by the Diels-Alder reaction of 1,3-diphenylisobenzofuran with adducts of furan (or silvan) and the corresponding maleic (fumaric) acid derivative or with trans-cyclohex-4-ene-1,2-dicarbonitrile, followed by aromatization. Pleiades Publishing, Inc., 2006.

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