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212200-93-6

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212200-93-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212200-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,2,0 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 212200-93:
(8*2)+(7*1)+(6*2)+(5*2)+(4*0)+(3*0)+(2*9)+(1*3)=66
66 % 10 = 6
So 212200-93-6 is a valid CAS Registry Number.

212200-93-6Relevant articles and documents

Tetrazoles: XXXV. Synthesis of 3H-1,3,4-Benzotriazepines from 5-Aryltetrazoles

Artamonova,Koldobskii

, p. 1767 - 1770 (2007/10/03)

Reaction of 5-aryltetrazoles with N,N′-bis(p-tolyl)terephthalimidoyl dichloride under conditions of phase-transfer catalysis yields isomeric N-imidoyltetrazoles whose thermolysis results in formation of 3H-1,3,4-benzotriazepines. The latter are hydrolyzed by the action of hydrochloric acid to afford terephthalic acid and the corresponding aminobenzophenone.

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