Cas 1241556-45-5,4-(9-phenylmethyl-9H-purin-6-yl)-benzene-1,3-diol

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Check Digit Verification of cas no

The CAS Registry Mumber 1241556-45-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,1,5,5 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1241556-45:
(9*1)+(8*2)+(7*4)+(6*1)+(5*5)+(4*5)+(3*6)+(2*4)+(1*5)=135
135 % 10 = 5
So 1241556-45-5 is a valid CAS Registry Number.

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1241556-45-5Relevant articles and documents

Nucleophilic arylation of halopurines facilitated by br?nsted acid in fluoroalcohol

Takenaga, Naoko,Shoji, Toshitaka,Menjo, Takayuki,Hirai, Akiko,Ueda, Shohei,Kikushima, Kotaro,Hanasaki, Tomonori,Dohi, Toshifumi

, (2019/11/11)

Various aryl-substituted purine derivatives were synthesized through the direct arylation of halopurines with aromatic compounds, facilitated by the combination of triflic acid and fluoroalcohol. This metal-free method is complementary to conventional cou

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1241556-45-5