63437-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63437-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,4,3 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 63437-21:
(7*6)+(6*3)+(5*4)+(4*3)+(3*7)+(2*2)+(1*1)=118
118 % 10 = 8
So 63437-21-8 is a valid CAS Registry Number.
63437-21-8Relevant 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