131926-78-8 Usage
Commonly known as
CIVO
Check Digit Verification of cas no
The CAS Registry Mumber 131926-78-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,2 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131926-78:
(8*1)+(7*3)+(6*1)+(5*9)+(4*2)+(3*6)+(2*7)+(1*8)=128
128 % 10 = 8
So 131926-78-8 is a valid CAS Registry Number.
InChI:InChI=1/C20H13N3O/c1-24-20-13(10-21)16-11-6-2-4-8-14(11)22-18(16)19-17(20)12-7-3-5-9-15(12)23-19/h2-9,22-23H,1H3
131926-78-8Relevant articles and documents
The first syntheses of antiviral, cytotoxic 6-cyano-5-methoxy- and-12-methyundolo[2,3-a]carbazoles, and related indolo[2,3-a]carbazoles from indigo
Hayashi, Hiroyuki,Ohmoto, Shinobu,Somei, Masanori
, p. 1647 - 1650 (1997)
The first simple total syntheses of 6-cyano-5-methoxy- (1a) and -12-methylindolo[2,3-a]carbazolc (1b) are attained from indigo (2) in only five and six steps, respectively. Preparations of 5-hydroxy- (13), 5-bromoindolo[2,3-a]carbazole (14), and a novel spiro compound (7) are also included.
