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91787-03-0

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91787-03-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91787-03-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,8 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91787-03:
(7*9)+(6*1)+(5*7)+(4*8)+(3*7)+(2*0)+(1*3)=160
160 % 10 = 0
So 91787-03-0 is a valid CAS Registry Number.

91787-03-0Downstream Products

91787-03-0Relevant articles and documents

Solvent Effects on Isomer Distributions in Acylation of 1,2,3,4-tetramethyldibenzofuran : Regiospecific Solvation of the Intermediate ?-Complex

Keumi, Takashi,Yagi, Yumiko,Kato, Yoko,Taniguchi, Rikio,Temporin, Makoto,Kitajima, Hidehiko

, p. 799 - 806 (2007/10/02)

A large solvent effect is observed in Friedel-Crafts acylation of 1,2,3,4-tetramethyldibenzofuran (TMD). 8-Acyl-TMD is by far the major product in nitrohydrocarbons while 7-acyl-TMD is favoured in chlorohydrocarbons and is the major product in many cases.

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