83990-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83990-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,9 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 83990-18:
(7*8)+(6*3)+(5*9)+(4*9)+(3*0)+(2*1)+(1*8)=165
165 % 10 = 5
So 83990-18-5 is a valid CAS Registry Number.
83990-18-5Relevant academic research and scientific papers
SYNTHESIS OF 2,4-SUBSTITUTED 5-MERCAPTOOXAZOLES
Vinogradova, T. K.,Kisilenko, A. A.,Drach, B. S.
, p. 1630 - 1635 (2007/10/02)
Enamides with the general formula Cl2C=C(X)NHCOR react readily with sodium hydrosulfide and give previously unknown 2-R-4-X-5 mercaptooxazoles, which were isolated in the indi
