129667-02-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129667-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,6 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129667-02:
(8*1)+(7*2)+(6*9)+(5*6)+(4*6)+(3*7)+(2*0)+(1*2)=153
153 % 10 = 3
So 129667-02-3 is a valid CAS Registry Number.
InChI:InChI=1/C21H23NO2S/c1-16-10-12-18(13-11-16)25(23,24)22-15-14-20-19(8-5-9-21(20)22)17-6-3-2-4-7-17/h5,8-15,17H,2-4,6-7H2,1H3
129667-02-3Relevant articles and documents
PREPARATION OF ALKYL-SUBSTITUTED INDOLES IN THE BENZENE PORTION. Part 3
Muratake, Hideaki,Natsume, Mitsutaka
, p. 683 - 690 (2007/10/02)
Three-step synthesis of 7- and 4-alkyl-1-tosylindoles (9 and 10) was accomplished by combination of the Friedel-Crafts acylation of 4, and the treatment of 7 and 8 with H2SO4 in 2-propanol as illustrated in Chart 2.Further a novel synthetic method of 16 was devised from 14 by way of 15.