264257-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 264257-14-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,4,2,5 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 264257-14:
(8*2)+(7*6)+(6*4)+(5*2)+(4*5)+(3*7)+(2*1)+(1*4)=139
139 % 10 = 9
So 264257-14-9 is a valid CAS Registry Number.
264257-14-9Relevant articles and documents
Thiocarbamoylation of amine-containing compounds 3. 5-(N′,N′-dimethylthioureido)salicylic acid. Synthesis and reactions
Van Boi, Luu,Al-Ebaisat
, p. 2290 - 2293 (2007/10/03)
Thiocarbamoylation of 5-aminosalicylic acid with tetramethylthiuram disulfide afforded 5-(N′,N′-dimethylthioureido)salicylic acid. Treatment of the latter with mineral acids or Ac2O gave 5-isothiocyanatosalicylic acid, whose reaction with ethan
