144434-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144434-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,4,3 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 144434-77:
(8*1)+(7*4)+(6*4)+(5*4)+(4*3)+(3*4)+(2*7)+(1*7)=125
125 % 10 = 5
So 144434-77-5 is a valid CAS Registry Number.
144434-77-5Relevant articles and documents
Synthesis and isolation of bromo-β-carbolines obtained by bromination of β-carboline alkaloids
Ponce,Erra-Balsells
, p. 1087 - 1095 (2007/10/03)
β-Carbolines (1-5) undergo electrophilic aromatic substitution with N-bromosuccinimide under different experimental conditions. Although 6-bromo-nor-harmane (1a) obtained by bromination of nor-harmane (1) was isolated and fully characterized sometime ago,
