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139502-92-4

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139502-92-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139502-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,0 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139502-92:
(8*1)+(7*3)+(6*9)+(5*5)+(4*0)+(3*2)+(2*9)+(1*2)=134
134 % 10 = 4
So 139502-92-4 is a valid CAS Registry Number.

139502-92-4Downstream Products

139502-92-4Relevant articles and documents

BENZOXAZINE DERIVATIVES AS INHIBITORS OF LEUKOTRIENES

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, (2008/06/13)

The invention concerns a bicyclic heterocyclic compound of the formula I wherein Q is an optionally substituted 10-membered bicyclic heterocyclic moiety containing 1 or 2 N's and a further O or S heteroatom; A1 is a direct link to X1 or (1-3C)alkylene; X1 is oxy, thio, sulphinyl, sulphonyl or imino; Ar is optionally substituted phenylene or pyridylene; R1 is (1-4C)alkyl, (3-4C)alkenyl or (3-4C)alkynyl; and R2 and R3 together form a group of the formula -A2-X2-A3- which, together with the carbon atom to which A2 and A3 are attached, defines a ring having 5 to 7 ring atoms, wherein each of A2 and A3 is (1-3C)alkylene and X2 is oxy, thio, sulphinyl or sulphonyl; or a pharmaceutically-acceptable salt thereof. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase

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