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570373-92-1

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570373-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 570373-92-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,0,3,7 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 570373-92:
(8*5)+(7*7)+(6*0)+(5*3)+(4*7)+(3*3)+(2*9)+(1*2)=161
161 % 10 = 1
So 570373-92-1 is a valid CAS Registry Number.

570373-92-1Downstream Products

570373-92-1Relevant articles and documents

Synthesis of some new azoles and azines and their condensed derivatives

Ahmed, Gamal A.

, p. 438 - 442 (2007/10/03)

Ethyl (2,5-Dimethylphenyl) pyruvate (2) condensed with o-phenylenediamine, ethylenediamine, semicarbazide and thiosemicarbazide and gave quinoxaline derivative (3), dihydropyrazine derivative (9) and 1,2,4-triazine derivatives (10, 11) respectively. Compound (3) reacted with phosphorous pentasulphide, polyphosphoric acid, semicarbazide hydrochloride and phenylisothiocyanate yielded thienoquinoxaline derivative (4), furoquinoxaline derivative (5), semicarbazone derivative (6) and pyrrole derivative (15) respectively. Reaction of (2) with hydrazines and malononitrile afforded the arylpyrazole derivatives (12a, b) and pyrane derivative (13) respectively. Hetrocyclization of compound (6) afforded thiadiazole and selenodiazole derivatives (7), (8).

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