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82805-66-1

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82805-66-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82805-66-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,0 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 82805-66:
(7*8)+(6*2)+(5*8)+(4*0)+(3*5)+(2*6)+(1*6)=141
141 % 10 = 1
So 82805-66-1 is a valid CAS Registry Number.

82805-66-1Relevant articles and documents

6-Amino-5-cyano-1H,4H-pyrazolo[3,4-b]pyrans

Sharanina,Promonenkov,Marshtupa,Pashchenko,Puzanova,Sharanin,Klyuev,Gusev,Gnatusina

, p. 607 - 611 (2007/10/02)

The reaction of 3-methyl-1-phenyl-5-pyrazolene with arylideneamino nitriles in alcohol leads to the formation of 3-methyl-4(1-aryl-2,2-dicyanoethyl)-5-pyrazolones, which are readily cyclized in the presence of bases to the corresponding 6-amino-5-cyano-3-

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