138904-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138904-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,0 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138904-89:
(8*1)+(7*3)+(6*8)+(5*9)+(4*0)+(3*4)+(2*8)+(1*9)=159
159 % 10 = 9
So 138904-89-9 is a valid CAS Registry Number.
138904-89-9Relevant academic research and scientific papers
182. A Convenient Synthesis of Vinyl Sulfides
Katritzky, Alan R.,Afridi, Amir S.,Kuzmierkiewicz, Wojciech
, p. 1931 - 1935 (2007/10/02)
tert-Alkyl sulfides, with an α-(1H-benzotriazol-1-yl) group 6 and 13, are readily prepared from N--1H-benzotriazoles 3 and N-(11), respectively, by reaction with BuLi and then with the appropriate electrophile.The tert-alkyl sulfides 6 a
