18649-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18649-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,6,4 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18649-98:
(7*1)+(6*8)+(5*6)+(4*4)+(3*9)+(2*9)+(1*8)=154
154 % 10 = 4
So 18649-98-4 is a valid CAS Registry Number.
18649-98-4Relevant academic research and scientific papers
Convenient Synthesis of Sulfur Ylides by Reaction of Active Methylene Compounds with Corey-Kim Reagent
Katayama, Sadamu,Watanabe, Toshio,Yamauchi, Masashige
, p. 973 - 976 (2007/10/02)
Reactions of active methylene compounds with Corey-Kim reagent in the presence of triethylamine afford stable sulfur ylides in satisfactory yields.
