128537-50-8 Usage
General Description
4-Bromo-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid is a chemical compound with the molecular formula C10H14BrN3O2. It is a carboxylic acid derivative of pyrazole and contains a bromine atom, a methyl group, and a propyl group. 4-BROMO-1-METHYL-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID has potential applications in the pharmaceutical and agrochemical industries, and it may be used as a building block in the synthesis of various organic compounds. Its properties and potential uses make it an interesting target for further research and development.
Check Digit Verification of cas no
The CAS Registry Mumber 128537-50-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,3 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128537-50:
(8*1)+(7*2)+(6*8)+(5*5)+(4*3)+(3*7)+(2*5)+(1*0)=138
138 % 10 = 8
So 128537-50-8 is a valid CAS Registry Number.
128537-50-8Relevant articles and documents
A modified, economical and efficient synthesis of variably substituted pyrazolo[4,3-d]pyrimidin-7-ones
Khan, Khalid Mohammed,Maharvi, Ghulam Murtaza,Choudhary, Muhammad Iqbal,Atta-Ur-Rahman,Perveen, Shahnaz
, p. 1085 - 1093 (2007/10/03)
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic acid (3) was exclusively brominated at the 4-position by bromine in the dark. Brominated product 8 was then converted into 1-methyl-3-propyl-1H-pyrazole-5-carboxamide 9 by successive treatment with thionyl chloride and ammonium hydroxide. Carboxamide 9 was treated with various aroyl amides under microwave (MW) irradiation to afford 4-aroylamino-1-methyl-3-propyl-1H-pyrazole-5-carboxamides 10-22 and 5-aryl-1-methyl-3-propyl-1,6-dihydro-1H-pyrazolo[4,3-d]pyrimidin-7-ones 23-35. The 1H-pyrazole-5-carboxamides 10-22 were also converted to pyrimidinones 23-35 either by conventional heating or by MW irradiation. However, MW irradiation method gives excellent yields in very short time.
