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1313261-88-9

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1313261-88-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1313261-88-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,2,6 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1313261-88:
(9*1)+(8*3)+(7*1)+(6*3)+(5*2)+(4*6)+(3*1)+(2*8)+(1*8)=119
119 % 10 = 9
So 1313261-88-9 is a valid CAS Registry Number.

1313261-88-9Downstream Products

1313261-88-9Relevant articles and documents

Norcantharidin analogues with nematocidal activity in Haemonchus contortus

Campbell, Bronwyn E.,Tarleton, Mark,Gordon, Christopher P.,Sakoff, Jennette A.,Gilbert, Jayne,McCluskey, Adam,Gasser, Robin B.

supporting information; experimental part, p. 3277 - 3281 (2011/07/07)

With the major problems with resistance in parasitic nematodes of livestock to anthelmintic drugs, there is an urgent need to develop new nematocides. In the present study, we employed a targeted approach for the design of a series of norcantharidin analogues (n = 54) for activity testing against the barber's pole worm (Haemonchus contortus) of small ruminants in a larval development assay (LDA) and also for toxicity testing on nine distinct human cell lines. Although none of the 54 analogues synthesized were toxic to any of these cell lines, three of them (N-octyl-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide (B2), N-decyl-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide (B3) and 4-[(4-methyl)-3-ethyl-2-methyl-5-phenylfuran-10-oxa-4-azatricyclo[5.2.1] decane-3,5-dione (B21) reproducibly displayed 99-100% lethality to H. contortus in LDA, with LD50s of 25-40 μM. The high 'hit rate' (5.6%) indicates that the approach taken here has advantages over conventional drug screening methods. A major advantage of norcantharidin analogues over some other currently available anthelmintics is that they can be produced in one to two steps in large amounts at low cost and high purity, and do not require any additional steps for the isolation of the active isomer. This positions them well for commercial development.

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