92635-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 92635-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,6,3 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 92635-28:
(7*9)+(6*2)+(5*6)+(4*3)+(3*5)+(2*2)+(1*8)=144
144 % 10 = 4
So 92635-28-4 is a valid CAS Registry Number.
92635-28-4Relevant articles and documents
A CONVENIENT CONVERSION OF INDOLES TO 3,3-DIBROMOOXINDOLES AND THEN TO ISATINS
Parrick, John,Yahya Arbaeyah,Jin, Yizun
, p. 3099 - 3100 (1984)
3-Bromoindoles, 3-unsubstituted indoles, or 3-formylindoles on treatment with NBS (2,3 or 4 molar equivalents, respectively) in t-butanol give 3,3-dibromooxindoles, and these readily yield the corresponding isatins on hydrolysis.