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112331-40-5

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112331-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112331-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,3,3 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 112331-40:
(8*1)+(7*1)+(6*2)+(5*3)+(4*3)+(3*1)+(2*4)+(1*0)=65
65 % 10 = 5
So 112331-40-5 is a valid CAS Registry Number.

112331-40-5Relevant articles and documents

AN EFFICIENT PROCEDURE FOR THE SYNTHESIS OF PYRAZOLOTHIAZIN-4-ONES

Vicentini, Chiara B.,Veronese, Augusto C.,Guccione, Salvatore,Guarneri, Mario,Manfrini, Maurizio,Giori, Paolo

, p. 2291 - 2302 (2007/10/02)

Trichloromethyl chloroformate reacts with N-(1-alkyl/aryl-5-pyrazolyl)thiocarboxamides (2a-j) to give pyrazolothiazin-4-ones (3) while it reacts with N-(3-methyl-5-pyrazolyl)thiobenzamide (2m) to give the pyrazolothiadiazine-4-one (4).Heating under reflux in formic acid of homologues (3g-i) bearing a tert-butyl group linked to pyrazole N-1 atom afforded the dealkylated derivatives (3k-m).

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