189757-14-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189757-14-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,7,5 and 7 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 189757-14:
(8*1)+(7*8)+(6*9)+(5*7)+(4*5)+(3*7)+(2*1)+(1*4)=200
200 % 10 = 0
So 189757-14-0 is a valid CAS Registry Number.
189757-14-0Relevant academic research and scientific papers
New syntheses of 2,4-diaminothiophenes - Use of (1,3-oxathiol-2-ylidene)malononitrile
Rehwald, Matthias,Gewald, Karl,Boettcher, Gesine
, p. 493 - 500 (2007/10/03)
Preparation of 2,4-diaminothiophenes using (1,3-oxathiol-2-ylidene)-malononitrile as intermediate was achieved.
