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1381809-70-6

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1381809-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1381809-70-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,1,8,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1381809-70:
(9*1)+(8*3)+(7*8)+(6*1)+(5*8)+(4*0)+(3*9)+(2*7)+(1*0)=176
176 % 10 = 6
So 1381809-70-6 is a valid CAS Registry Number.

1381809-70-6Downstream Products

1381809-70-6Relevant articles and documents

Synthesis, spectroscopic, and antimicrobial activity studies of novel 10-substituted camptothecin phosphorothioate analogs

Alaghaz, Abdel-Nasser M.A.,El-Sayad, Badr A.,Albohy, Salwa A.H.

experimental part, p. 799 - 807 (2012/08/07)

A series of title compounds 2 and 3 were efficiently synthesized via the condensation of 10-hydroxycamptothecin with various symmetric (O,O-monoaryl)-thiophosphoryl chlorides and asymmetric (O-ethyl-O-aryl)- thiophosphoryl chlorides in sodium hydroxide powder and acetonitrile system. The structures of title compounds 2 and 3 were confirmed by elemental analysis, IR, 1H NMR, 13C NMR, 31P[1H] NMR,and mass spectral data. These symmetric [(O,O-monoaryl)-thiophosphoryl)]-(20S)- camptothecin (2a-f) and asymmetric [(O-ethyl-O-aryl)-thiophosphoryl)]-(20S)- camptothecin (3a-f) compounds were also tested for their in vitro antimicrobial activities against some bacterial strains, namely, S. aureus, B. Simplex, E. acetylicum, E. coli, P. aeruginosa, S. flexenari, S. aureus, S. typhi, and some fungal strains Aspergillus niger, Aspergillus flavus (molds), S. cerevisiae, C. albicans, T. longifucus, A. flavus, M. canis, F. solani, and C. glaberata (yeasts). Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the related elements to view the free supplemental file. Copyright Taylor and Francis Group, LLC 2012.

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