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145665-70-9

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145665-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145665-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,6,6 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 145665-70:
(8*1)+(7*4)+(6*5)+(5*6)+(4*6)+(3*5)+(2*7)+(1*0)=149
149 % 10 = 9
So 145665-70-9 is a valid CAS Registry Number.

145665-70-9Relevant articles and documents

Synthesis and antiaggregator activity of some new derivatives of 4H-benzopyran-4-one

Goeker, H.,Ayhan, G.,Tuncbilek, M.,Ertan, R.,Leoncini, G.,et al.

, p. 561 - 568 (2007/10/02)

A series of 2--4H-1-benzopyran-4-one analogues 7a-7e was synthesized by the reaction with 3',4'-diaminoflavone and aliphatic carboxylic acids. 3',4'-Diaminoflavone 6 was prepared via the reduction of 2-(4-amino-3-nitrophenyl)-4H-1-benzopyran-4-one 5a.The compounds 7a-e and 14a-f were tested in vitro for their inhibitory activities against human platelet aggregation induced by collagen, ADP and A23187.The compound with a COOR group as a side chain, 2-(2-akyloxycarbonyl-2,3-dihydro-1,4-benzodioxin -6-yl)-4H-1-benzopyran-4-one 14a-f, haspotent activity, and so compound 13 was also prepared as an analogue of series 14 and tested for its antiaggregator activity. 4H-1-benzopyran-4-one/ benzodioxane/ benzimidazole/ human platelet/ aggregation

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