148209-29-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148209-29-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,2,0 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 148209-29:
(8*1)+(7*4)+(6*8)+(5*2)+(4*0)+(3*9)+(2*2)+(1*9)=134
134 % 10 = 4
So 148209-29-4 is a valid CAS Registry Number.
148209-29-4Relevant articles and documents
Aromatic diamine intermediates useful in the preparation of polyimides
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, (2008/06/13)
A heat-resistant and thermoplastic polyimide which has low dielectric characteristics and recurring structural units of the following formula: STR1 wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting