128009-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128009-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128009-81:
(8*1)+(7*2)+(6*8)+(5*0)+(4*0)+(3*9)+(2*8)+(1*1)=114
114 % 10 = 4
So 128009-81-4 is a valid CAS Registry Number.
128009-81-4Relevant articles and documents
Synthesis and Identification of 4-Methyl-N-(4H-1,2,4-triazol-4-yl)-2-benzothiazolamine, an Impurity in the Synthesis of Tricyclazole
Dreikorn, Barry A.,Unger, Paul
, p. 1735 - 1737 (2007/10/02)
The synthesis of 4-methyl-N-(4H-1,2,4-triazol-4-yl)-2-benzothiazolamine, 4, a by-product in the synthesis of tricyclazole, 1, by oxidative cyclization of the corresponding thiourea, 12, with thionyl chloride, is described.
