97180-86-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97180-86-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,8 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97180-86:
(7*9)+(6*7)+(5*1)+(4*8)+(3*0)+(2*8)+(1*6)=164
164 % 10 = 4
So 97180-86-4 is a valid CAS Registry Number.
InChI:InChI=1/C13H9NO2/c1-9-2-4-10(5-3-9)13-8-11(15)12(16-13)6-7-14/h2-6,8H,1H3/b12-6+
97180-86-4Relevant academic research and scientific papers
CHEMISTRY OF THE OXALYL DERIVATIVES OF ETHYL KETONES. XXXIX. REACTION OF 5-ARYL-2,3-DIHYDROFURAN-2,3-DIONES WITH METHYLENETRIPHENYLPHOSPHORANES
Andreichikov, Yu. S.,Koz'minykh, V. O.,Manelova, E. N.
, p. 363 - 366 (2007/10/02)
5-Aryl-2,3-dihydrofuran-2,3-diones react with alkoxycarbonylmethylene- and cyanomethylenetriphenylphosphoranes at the lactone carbonyl with the formation of 2-methyl-5-aryl-2,3-dihydrofuran-3-ones.
