248955-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 248955-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,8,9,5 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 248955-91:
(8*2)+(7*4)+(6*8)+(5*9)+(4*5)+(3*5)+(2*9)+(1*1)=191
191 % 10 = 1
So 248955-91-1 is a valid CAS Registry Number.
248955-91-1Relevant academic research and scientific papers
1,4-bis(3,4-dicarboxyphenoxy)-2-tert-butylbenzene dianhydride and method of using the same
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, (2008/06/13)
The present invention provides a series of easily processable poly(ether-imide)s that are organic-soluble and can afford colorless films, their organic solutions and their manufacturing process. The poly(ether-imide) is prepared from a dianhydride and a d
