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1000680-95-4

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1000680-95-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1000680-95-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,0,6,8 and 0 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1000680-95:
(9*1)+(8*0)+(7*0)+(6*0)+(5*6)+(4*8)+(3*0)+(2*9)+(1*5)=94
94 % 10 = 4
So 1000680-95-4 is a valid CAS Registry Number.

1000680-95-4Relevant articles and documents

Discovery of 5-substituted-6-chlorouracils as efficient inhibitors of human thymidine phosphorylase

Nencka, Radim,Votruba, Ivan,H?ebabecky, Hubert,Jansa, Petr,Tlou?t'ová, Eva,Horská, Květa,Masojídková, Milena,Holy, Antonín

, p. 6016 - 6023 (2008/09/17)

Thymidine phosphorylase plays an important role in angiogenesis, which is an attractive target for therapy of cancer and other diseases. In our continuous effort to develop novel inhibitors of thymidine phosphorylase, we have discovered that 6-halouracils substituted at position C5 by certain hydrophobic groups exhibit significant inhibitory activity against this enzyme. The most potent compounds bear a five- or six-membered cyclic substituent containing a π-electron system at C5 and a chlorine atom attached at C6. 6-Chloro-5-cyclopent-1-en-1-yluracil 7a is the most efficient derivative in this study, with Ki = 0.20 ± 0.03 μM (Ki/ dThdKm = 0.0017) for thymidine phosphorylase expressed in V79 cells and Ki = 0.29 ± 0.04 μM (Ki/ dThdKm = 0.0024) for the enzyme purified from placenta.

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