216252-48-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216252-48-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,2,5 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 216252-48:
(8*2)+(7*1)+(6*6)+(5*2)+(4*5)+(3*2)+(2*4)+(1*8)=111
111 % 10 = 1
So 216252-48-1 is a valid CAS Registry Number.
216252-48-1Relevant academic research and scientific papers
Fluorinated Heterocycles: I. New 1,4-Benzothiazines and 1,2,4-Benzothiadiazines
Vysokov,Charushin,Chupakhin,Pashkevich
, p. 428 - 433 (2007/10/03)
Chlorosulfonation of 3,4-difluoroaniline gave 2-amino-4,5-difluorobenzenesulfonyl chloride which was converted into the corresponding sulfonamide and sulfinic acid. The latter were used to synthesize various fluorine-containing 1,4-benzothiazine and 1,2,4
