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1238832-31-9

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1238832-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238832-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,8,3 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1238832-31:
(9*1)+(8*2)+(7*3)+(6*8)+(5*8)+(4*3)+(3*2)+(2*3)+(1*1)=159
159 % 10 = 9
So 1238832-31-9 is a valid CAS Registry Number.

1238832-31-9Relevant articles and documents

COELENTERAMIDE ANALOGS

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, (2011/12/12)

There has been a need for coelenteramide analogs or the like that produce fluorescent proteins which exhibit different fluorescent characteristics from those of the existing fluorescent proteins. Disclosed is a compound represented by general formula (1) (wherein R1 represents a substituted or unsubstituted aryl, a substituted or unsubstituted arylalkyl, a straight or branched alkyl which may optionally be substituted with an alicyclic group, an alicyclic group or a heterocyclic group; R2 represents hydrogen or —(SO2)R4; R3 represents hydrogen, hydroxyl, methoxy or acetoxy; R4 represents a substituted or unsubstituted aryl, a substituted or unsubstituted arylalkyl or a straight or branched alkyl which may optionally be substituted with an alicyclic group; and X1 represents —C(═S)— or —SO2—).

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