73547-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73547-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,4 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73547-50:
(7*7)+(6*3)+(5*5)+(4*4)+(3*7)+(2*5)+(1*0)=139
139 % 10 = 9
So 73547-50-9 is a valid CAS Registry Number.
73547-50-9Relevant articles and documents
Penicillanic acid derivatives
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, (2008/06/13)
Penicillanic acid derivatives which have an excellent antibacterial action particularly against bacteria belonging to family Pseudomonas aeruginosa and are represented by the formula STR1 wherein R1, R2, and R3 and n are as defined above, and salts thereof; and a process for preparing the same are disclosed.
