99819-29-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99819-29-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,1 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99819-29:
(7*9)+(6*9)+(5*8)+(4*1)+(3*9)+(2*2)+(1*9)=201
201 % 10 = 1
So 99819-29-1 is a valid CAS Registry Number.
99819-29-1Relevant articles and documents
A NEW APPROACH TO 5-ARYLIDENETHIAZOLIDIN-4-ONES
Rudorf, Wolf-Dieter,Schwarz, Ralf
, p. 3459 - 3465 (2007/10/02)
Reaction of 3-phenylpropynamides with heterocumulenes in the presence of a base yields 5-arylidenethiazolidin-4-ones by intramolecular nucleophilic addition to the α-carbon of the CC triple bond.
