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1238698-26-4

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1238698-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238698-26-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,6,9 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1238698-26:
(9*1)+(8*2)+(7*3)+(6*8)+(5*6)+(4*9)+(3*8)+(2*2)+(1*6)=194
194 % 10 = 4
So 1238698-26-4 is a valid CAS Registry Number.

1238698-26-4Downstream Products

1238698-26-4Relevant articles and documents

Pyridazinone compounds

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Page/Page column 151, (2010/08/08)

The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0): wherein R1 represents a substituent, R2 represents a hydrogen atom, or a substituent, R3 represents a hydrogen atom, or a substituent, Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted, or a salt thereof.

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