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112031-44-4

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112031-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112031-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,0,3 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 112031-44:
(8*1)+(7*1)+(6*2)+(5*0)+(4*3)+(3*1)+(2*4)+(1*4)=54
54 % 10 = 4
So 112031-44-4 is a valid CAS Registry Number.

112031-44-4Downstream Products

112031-44-4Relevant articles and documents

SYNTHESIS OF PORPHYRINS WITH FOUR EXOCYCLIC RINGS FROM 4,5,6,7-TETRAHYDROINDOLES

Lash, Timothy D.,Bladel, Karla A.,Johnson, Marty C

, p. 1135 - 1138 (1987)

The 3-alkyl-4,5,6,7-tetrahydroindoles 4a and 4b reacted with lead tetraacetate in acetic acid to give the corresponding 7-acetoxy derivatives; hydrolysis, followed by treatment with potassium ferricyanide in refluxing acetic acid afforded the novel porphyrins 6a and 6b.

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