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719288-30-9

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719288-30-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 719288-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,9,2,8 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 719288-30:
(8*7)+(7*1)+(6*9)+(5*2)+(4*8)+(3*8)+(2*3)+(1*0)=189
189 % 10 = 9
So 719288-30-9 is a valid CAS Registry Number.

719288-30-9Relevant articles and documents

PYRAZOLE COMPOUNDS

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Page 47, (2008/06/13)

Compounds of formula (IA) or (IB) or a salt, N-oxide, hydrate or solvate thereof are inhibitors of HSP90, and are of value in the treatment of diseases responsive to HSP90 inhibition such as cancers. In the formulae, Ar is an aryl, aryl(C1-C6 alkyl), aryl(C1-C6 alkyl), heteroaryl, heteroarylaryl(C1-C6 alkyl), or heteroarylaryl(C1-C6 alkyl) group, any of which being optionally substituted in the aryl or heteroaryl part thereof; R1, is hydrogen or optionally substituted Cl-C6 alkyl; R2 is hydrogen, optionally substituted cycloalkyl, cycloalkenyl, C1-C6 alkyl, C1-C6 alkenyl, or Cl-C6 alkynyl; or a carboxyl, carboxamide or carboxyl ester group; and ring A is a non aromatic carbocyclic or heterocyclic ring wherein (i) a ring carbon is optionally substituted, and/or (ii) a ring nitrogen is optionally substituted by a group of formula -(Alk1)p (Cyc)n-(Alk3)m-(Z)r (Alk2)s Q where Alk1, Alk2 and Alk3 are optionally substituted C1-C3 alkyl, Cyc is an optionally substituted carbocyclic or heterocyclic radical; m, n, p, r and s are independently 0 or 1, Z is -0-, -S-, -(C=O)-, -S02-, -C(=O)O-, -OC(=O)-, -NW-, -C(=O)NRA-, -NRAC(=O)-, -SO2NRA- , or -NRASO2- wherein RA is hydrogen or C1-C6 alkyl, and Q is hydrogen or an optionally substituted carbocyclic or heterocyclic radical.

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