89607-11-4 Usage
Description
1H-Pyrazole, 4-bromo-1-methyl-5-nitrois a chemical compound with the molecular formula C4H5BrN3O2. It is a derivative of pyrazole and is characterized by the presence of a bromine atom, a methyl group, and a nitro group on the pyrazole ring. This versatile intermediate is known for its unique chemical properties, making it a valuable component in the production of complex molecules for medicinal and agricultural purposes.
Uses
Used in Pharmaceutical Industry:
1H-Pyrazole, 4-bromo-1-methyl-5-nitrois used as a key intermediate in the synthesis of various pharmaceuticals for its potential to create compounds with significant biological activity. Its unique structure allows for the development of new drugs with improved efficacy and targeted therapeutic effects.
Used in Agrochemical Industry:
In the agrochemical sector, 1H-Pyrazole, 4-bromo-1-methyl-5-nitroserves as an essential building block in the creation of agrochemicals. Its incorporation into these products contributes to the development of more effective and targeted pesticides, herbicides, and other agricultural chemicals, enhancing crop protection and yield.
Check Digit Verification of cas no
The CAS Registry Mumber 89607-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,0 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89607-11:
(7*8)+(6*9)+(5*6)+(4*0)+(3*7)+(2*1)+(1*1)=164
164 % 10 = 4
So 89607-11-4 is a valid CAS Registry Number.
89607-11-4Relevant articles and documents
NITRATION OF 4-HALO-1-METHYLPYRAZOLES IN SULFURIC ACID
Perevalov, V. P.,Manaev, Yu. A.,Baryshnenkova, L. I.,Kanep, E. E.,Andreeva, M. A.,Stepanov, B. I.
, p. 1081 - 1083 (2007/10/02)
The rate of nitration of 4-bromo- and 4-chloro-1-metylpyrazoles with nitric acid in various concentrations of sulfuric acid is higher at position 5 than at position 3.
AMINATION OF ISOMERIC BROMO-1-METHYLNITROPYRAZOLES
Perevalov, V. P.,Baryshnenkova, L. I.,Andreeva, M. A.,Manaev, Yu. A.,Denisova, I. A.,et al.
, p. 1322 - 1326 (2007/10/02)
A method was developed for the synthesis of 5-bromo-1-methyl-4-nitropyrazole from 1-methylpyrazole.In the reaction with 25percent aqueous ammonia at 180-190 deg C, 5-bromo-1-methyl-4-nitropyrazole is readily converted to 5-amino-1-methyl-4-nitropyrazole; the production of 4-amino-1-methyl-5-nitropyrazole from 4-bromo-1-methyl-5-nitropyrazole requires the presence of a copper catalyst; under the same conditions in the amination of 4-bromo-1-methyl-3-nitropyrazole, 4-amino-1-methyl-3-nitro- and 1-methyl-3-nitropyrazoles are formed in a 2 : 3 ratio.