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133845-14-4

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133845-14-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133845-14-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,4 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133845-14:
(8*1)+(7*3)+(6*3)+(5*8)+(4*4)+(3*5)+(2*1)+(1*4)=124
124 % 10 = 4
So 133845-14-4 is a valid CAS Registry Number.

133845-14-4Downstream Products

133845-14-4Relevant articles and documents

Synthesis and conformation of some 2- and 4-heterocyclyltetrahydroindazoles

Singh, S P,Kumar, Devinder,Diwakar, P,Moriarty, Robert M

, p. 306 - 312 (2007/10/02)

Condensation of 2-hydrazinobenzothiazoles with 2-hydroxymethylenecyclohexanone (1) results in the formation of two isomeric products, namely, 2-(4', 5', 6', 7'-tetrahydro-1H-indazol-1-yl)benzothiazoles and 2-(4', 5', 6', 7'-tetrahydro-2H-indazol-2-yl)benzothiazoles. 2-Hydrazinothiazoles and 2-hydrazinoquinolines react in a similar fashion. 4-Hydrazinoquinolines, however, afford on reaction with 1, a single isomer, 4-(4', 5', 6', 7'-tetrahydro-1-H-indazol-1-yl)quinoline in each case.The structural assignment and conformation of these molecules are based on NMR (both 1H and 13C) studies.

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