90133-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90133-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,3 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90133-50:
(7*9)+(6*0)+(5*1)+(4*3)+(3*3)+(2*5)+(1*0)=99
99 % 10 = 9
So 90133-50-9 is a valid CAS Registry Number.
90133-50-9Relevant articles and documents
Novel Rearrangement of 1,4-Ylidic Thiaanthracenes
Ohno, Sachio,Shimizu, Hiroshi,Kataoka, Tadashi,Hori, Mikio
, p. 2472 - 2478 (1984)
A novel rearrangement of 10-alkyl-9-aryl-10-thiaanthracenes is described. 9-Mesityl-10-methyl-10-thiaanthracene (8a) generated by proton abstraction of 9-mesityl-10-methylthioxanthenium perchlorate (7a) with sodium hydride in THF underwent thermal rearran