201849-18-5 Usage
Uses
Used in Pharmaceutical Industry:
5-Bromo-4-chloro-2-fluorotoluene is used as an intermediate in the synthesis of pharmaceuticals for its ability to contribute to the development of new and effective medications.
Used in Agrochemical Industry:
5-BROMO-4-CHLORO-2-FLUOROTOLUENE serves as an intermediate in the production of agrochemicals, playing a crucial role in the development of agricultural products that protect crops and enhance yields.
Used in Specialty Chemicals Production:
5-Bromo-4-chloro-2-fluorotoluene is utilized in the manufacturing process of specialty chemicals, where its unique properties contribute to the creation of high-value products for specific applications.
Used in Organic Synthesis:
As a versatile building block, 5-bromo-4-chloro-2-fluorotoluene is employed in organic synthesis to construct a wide range of functionalized organic compounds for various industries.
Check Digit Verification of cas no
The CAS Registry Mumber 201849-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,4 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 201849-18:
(8*2)+(7*0)+(6*1)+(5*8)+(4*4)+(3*9)+(2*1)+(1*8)=115
115 % 10 = 5
So 201849-18-5 is a valid CAS Registry Number.
InChI:InChI=1/C7H5BrClF/c1-4-2-5(8)6(9)3-7(4)10/h2-3H,1H3
201849-18-5Relevant academic research and scientific papers
Pyridonecarboxylic acid derivatives or salts thereof and drugs containing the same as the active ingredient
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, (2008/06/13)
PCT No. PCT/JP97/04326 Sec. 371 Date May 28, 1999 Sec. 102(e) Date May 28, 1999 PCT Filed Nov. 27, 1997 PCT Pub. No. WO98/23592 PCT Pub. Date Jun. 4, 1998The invention relates to pyridonecarboxylic acid derivatives represented by the general formula (1): wherein R1 is -OH, a carboxy-protecting group or (alkyl)amino group, R2 is H, or -NO2, (protected) amino, (protected) hydroxyl, lower alkyl or lower alkoxyl group, R3 is a halogen atom, H, or -NO2, lower alkyl, lower alkoxyl or amino group, R4 is an azido, (substituted) hydrazino, (substituted) amino, lower alkoxyl or hydroxyl group, R5, R6 and R7 are independently H, -NO2, halogen atom or lower alkyl group, R8 is a -NO2, (substituted) amino, -OH or lower alkoxyl group, A is N or C-R12, in which R12 is H, halogen atom, or (substituted) lower alkyl, lower alkenyl, lower alkynyl, lower alkoxyl, lower alkylthio or nitro group, and B is N or C-R13, in which R13 is H or halogen atom, or salts thereof, and medicine comprising such a compound as an active ingredient. The derivatives or the salts thereof exhibit excellent antibacterial action and peroral absorbability, scarcely cause side effects, and are easy of synthesis.
