754923-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 754923-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,4,9,2 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 754923-42:
(8*7)+(7*5)+(6*4)+(5*9)+(4*2)+(3*3)+(2*4)+(1*2)=187
187 % 10 = 7
So 754923-42-7 is a valid CAS Registry Number.
754923-42-7Relevant 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