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553672-28-9

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553672-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 553672-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,3,6,7 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 553672-28:
(8*5)+(7*5)+(6*3)+(5*6)+(4*7)+(3*2)+(2*2)+(1*8)=169
169 % 10 = 9
So 553672-28-9 is a valid CAS Registry Number.

553672-28-9Downstream Products

553672-28-9Relevant articles and documents

PYRAZOLOPYRIMIDINONE DERIVATIVES HAVING PDE7?INHIBITORY ACTIVITY

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Page 29, (2010/02/08)

Pyrazolopyrimidinone derivatives expressed by the following general formula (IA) or (IB): and the following general formula (IA') or (IB'): where the symbols are as disclosed in the specification, are provided as desired compounds. These compounds have the action of selectively inhibiting PDE7, thereby increasing the intracellular cAMP level and inhibiting the activation of T cells. Thus, they are useful for prevention and treatment of various allergic diseases and inflammatory or immunological diseases.

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