67730-48-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67730-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,3 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67730-48:
(7*6)+(6*7)+(5*7)+(4*3)+(3*0)+(2*4)+(1*8)=147
147 % 10 = 7
So 67730-48-7 is a valid CAS Registry Number.
67730-48-7Relevant articles and documents
Positive resist composition and photosensitizers
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, (2008/06/13)
A positive photoresist compositions comprising, as a photosensitizer, a quinonediazide sulfonic acid ester of a phenol compound represented by the following formula (I): STR1 wherein Q1, Q2, Q3, Q4, Q5/sup