81402-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81402-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81402-91:
(7*8)+(6*1)+(5*4)+(4*0)+(3*2)+(2*9)+(1*1)=107
107 % 10 = 7
So 81402-91-7 is a valid CAS Registry Number.
81402-91-7Relevant academic research and scientific papers
On the Chemistry of 4-Aminothiazoline-2-thiones
Gewald, Karl,Hain, Ute,Hartung, Petra
, p. 1393 - 1404 (2007/10/02)
4-Aminothiazolin-2-one-hydrazones 3 are obtained by succesive treatment of the title compound 1 with dimethyl sulfate and hydrazinehydrate.The rearrangement of 4-aminothiazolin-2-ylidenmalononitrile 7 derived from 1 yields the 2,4-diamino-thiophene deriva
