180746-39-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180746-39-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,7,4 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 180746-39:
(8*1)+(7*8)+(6*0)+(5*7)+(4*4)+(3*6)+(2*3)+(1*9)=148
148 % 10 = 8
So 180746-39-8 is a valid CAS Registry Number.
180746-39-8Relevant academic research and scientific papers
Synthesis and reactions of 2-mercapto-6-thioxo-thiopyran-3-carboxylate derivatives
Rehwald,Schaefer,Gewald,Gruner
, p. 516 - 522 (2007/10/03)
6-Amino-thiopyran-2-thiones (1) react with dihydrogen sulfide in the presence of pyridine and triethyl amine to yield 6-thioxo-thiopyran-2-thiolates (2). Methylation of 2 gives the methylthio compounds 3 and 4. Further methylation of 3a and 4a yields the
