137449-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137449-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,4 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 137449-21:
(8*1)+(7*3)+(6*7)+(5*4)+(4*4)+(3*9)+(2*2)+(1*1)=139
139 % 10 = 9
So 137449-21-9 is a valid CAS Registry Number.
137449-21-9Relevant articles and documents
Synthesis of heteroaryloxyhydroxypropanes and their PCA activities
Shinde, D B,Shingare, M S,Gupta, P P,Srimal R C
, p. 790 - 792 (2007/10/02)
1-(Substituted coumarinoxy)-3-substituted coumarinoxy/benzisoxazoloxy)-2-hydroxypropane (1-15) have been synthesised by treating substituted hydroxycoumarins and 6-hydroxy-3-methylbenzisoxazole with epichlorohydrin and found to possess PCA activities.
