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128379-13-5

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128379-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128379-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,7 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128379-13:
(8*1)+(7*2)+(6*8)+(5*3)+(4*7)+(3*9)+(2*1)+(1*3)=145
145 % 10 = 5
So 128379-13-5 is a valid CAS Registry Number.

128379-13-5Relevant articles and documents

Inhibitory activities against topoisomerase I & II by polyhydroxybenzoyl amide derivatives and their structure-activity relationship

Abdel-Aziz, Mohamed,Matsuda, Kazuya,Otsuka, Masami,Uyeda, Masaru,Okawara, Tadashi,Suzuki, Keitarou

, p. 1669 - 1672 (2007/10/03)

o-, m-, p-Phenylenediamines having 2,3,4-trihydroxy, 3,4 dihydroxy, and 4-hydroxybenzoyl moieties were prepared and their inhibitory activities were measured against topoisomerase I and II. More hydroxy groups on two aromatic rings increased the activities. Bis(trihydroxybenzoyl)-o-phenylenediamide showed IC50=0.90 and 0.09 μM against topoisomerase I and II, respectively. Compounds with hydroxy groups protected by acetyl moiety still had the activities. Less hydroxy groups decreased their activities. Benzothiazole derivatives also indicated the activities.

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