99108-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99108-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,1,0 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99108-21:
(7*9)+(6*9)+(5*1)+(4*0)+(3*8)+(2*2)+(1*1)=151
151 % 10 = 1
So 99108-21-1 is a valid CAS Registry Number.
99108-21-1Relevant articles and documents
1,3-Thiazines, XXVI: Novel N-Carbamoyl- and Thiocarbamoyl-2-thioxo-1,3-thiazine Derivatives
Hanefeld, Wolfgang,Bercin, Erdogan
, p. 848 - 854 (1985)
The N-unsubstituted 1,3-thiazine derivatives 1-3 were transformed into the N-carbamoyl- or N-thiocarbamoyl-1,3-thiazine derivatives 5-9 by carbamic acid chlorides or thiocarbamic acid chlorides in the presence of triethylamine or sodium hydride.
