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24040-12-8

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24040-12-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 24040-12-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,0,4 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 24040-12:
(7*2)+(6*4)+(5*0)+(4*4)+(3*0)+(2*1)+(1*2)=58
58 % 10 = 8
So 24040-12-8 is a valid CAS Registry Number.

24040-12-8Relevant articles and documents

REACTION OF N-ARYLTHIO-1,4-BENZOQUINONE IMINES WITH BENZENESULFINIC ACID

Kolesnikov, V. T.,Vid, L. V.,Kuz'menko, L. O.

, p. 1906 - 1909 (2007/10/02)

In reaction with sodium benzenesulfinate in acetic acid benzoquinone imines containing a RC6H4S (R = H, 4-OCH3, 4-Cl, 4-NO2, 2-NO2) group at the nitrogen atom form aryl benzenethiosulfonates and the benzenesulfinate of 2-phenylsulfonyl-4-aminophenol.The introduction of two nitro groups into the phenylthio group creates conditions for reaction in the quinonoid fragment, and here the main products are N-(2,4-dinitrophenylthio)-2(3)-phenylsulphonyl-4-aminophenols.

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