90049-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90049-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,0,4 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90049-53:
(7*9)+(6*0)+(5*0)+(4*4)+(3*9)+(2*5)+(1*3)=119
119 % 10 = 9
So 90049-53-9 is a valid CAS Registry Number.
90049-53-9Relevant articles and documents
PHOTOACID GENERATOR, CHEMICALLY AMPLIFIED RESIST COMPOSITION, AND PATTERNING PROCESS
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Paragraph 0226-0227, (2020/02/22)
A photoacid generator having formula (1a) is provided. A chemically amplified resist composition comprising the PAG forms a pattern of rectangular profile with a good balance of sensitivity and LWR when processed by photolithography using ArF excimer lase