741621-42-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 741621-42-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,1,6,2 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 741621-42:
(8*7)+(7*4)+(6*1)+(5*6)+(4*2)+(3*1)+(2*4)+(1*2)=141
141 % 10 = 1
So 741621-42-1 is a valid CAS Registry Number.
741621-42-1Relevant 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