742645-53-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 742645-53-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,2,6,4 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 742645-53:
(8*7)+(7*4)+(6*2)+(5*6)+(4*4)+(3*5)+(2*5)+(1*3)=170
170 % 10 = 0
So 742645-53-0 is a valid CAS Registry Number.
742645-53-0Relevant articles and documents
Synthesis and stimulant β-adrenergic activity of o-hydroxyalkyl catecholamines
de Antoni,Eche,Guillemot,et al.
, p. 545 - 552 (2007/10/06)
For new selective bronchodilatators, the phenol function in 3-position of 3,4 and 3,5-dihydroxy phenylethanolamines was replaced by a hydroxy-alcoxy group. From the results, it is apparent that the most favorable O-substitution is a hydroxyethylation, con