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1234556-30-9

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1234556-30-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1234556-30-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,5,5 and 6 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1234556-30:
(9*1)+(8*2)+(7*3)+(6*4)+(5*5)+(4*5)+(3*6)+(2*3)+(1*0)=139
139 % 10 = 9
So 1234556-30-9 is a valid CAS Registry Number.

1234556-30-9Downstream Products

1234556-30-9Relevant articles and documents

Site-selective arylation of alizarin and purpurin based on Suzuki-Miyaura cross-coupling reactions

Mahal, Ahmed,Villinger, Alexander,Langer, Peter

, p. 2075 - 2087 (2011/05/16)

A variety of arylated anthraquinones were prepared by site-selective Suzuki-Miyaura cross-coupling reactions of the bis- and tris(triflates) of alizarin and purpurin, respectively. The site-selectivity is controlled by the electronic influence of the carb

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