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125247-13-4

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125247-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125247-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,2,4 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 125247-13:
(8*1)+(7*2)+(6*5)+(5*2)+(4*4)+(3*7)+(2*1)+(1*3)=104
104 % 10 = 4
So 125247-13-4 is a valid CAS Registry Number.

125247-13-4Downstream Products

125247-13-4Relevant articles and documents

Benezenederivatives from Pyranes: 5-Aminochromones and -flavones from 3-Acetyl-2,6-dimethyl-4H-pyran-4-one

Eiden, Fritz,Patzelt, Gertrud,Buchborn, Helga

, p. 589 - 592 (1989)

3-Acetylpyrone 1 reacts with sec. amines to give the 2-acetylcyclohexanones 3, which can be dehydrated to yield the aminoacetophenones 7.Treatment of 3 or 7 with formamide acetal yields the enaminoketones 8, which can be converted to the 5-aminochromones

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