PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID
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![PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID structure](https://file.echemi.com/fileManage/upload/canonicalSmiles/20220811/ba9924cbb12f43b4b37d5535e5b39cd0.png "PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID")
PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID
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CAS No:
25940-35-6
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Formula:
C7H5N3O2
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Chemical Name:
PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID
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Synonyms:
ART-CHEM-BB B001273;AKOS B001273;TIMTEC-BB SBB006995;PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID;Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid(I);Albb-005394;pyrazolo[1,5-a]pyrimidine-3-carboxylic acid(SALTDATA: FREE);3-Carboxypyrazolo[1,5-a]pyrimidine
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CAS No:
PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID Basic Attributes
163.13
163.038177
DTXSID70365572
2933990090
Safety Information
IRRITANT
NONH for all modes of transport
3
36/37/38-22
26-36
Xi,Xn
P261-P305 + P351 + P338
H302-H315-H319-H335
|Warning|H302 (88.64%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 44 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID Use and Manufacturing
To a solution of ethyl pyrazolo[l, 5-a]pyrimidine-3-carboxylate (3.15 g, 16.4 mmol) in ethanol (50 mL) and water (40 mL) was added potassium hydroxide aqueous solution (2 M, 40 mL). The reaction mixture was stirred at 50 °C for 2 h and cooled down to room temperature and then concentrated in vacuo. The resulting mixture was adjusted to pH = 2 with 1M hydrochloric acid aqueous solution, and white solid was appeared, then filtered to afford the product as a white solid (2.6 g, 97percent).LC-MS (ESI, neg. ion) m/z: 162.1 [M-H] .To a solution of pyrazolo [1, 5-a] pyrimidine-3-carboxylic acid ethyl ester (3.15 g, 16.4 mmol)In ethanol (50 mL) and water (40 mL)Aqueous potassium hydroxide (2M, 40 mL) was added, The resulting reaction was stirred at 50 ° C for 2 hours, Cool to room temperature and concentrate under reduced pressure. A 1 M aqueous solution of dilute hydrochloric acid was added to the resulting reaction mixture to adjust to pH = 2. A white solid appeared and was filtered. The filter cake was collected to give the title compound as a white solid (2.6 g, 97percent).
Computed Properties
Molecular Weight:163.13
XLogP3:-0.1
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:1
Exact Mass:163.038176411
Monoisotopic Mass:163.038176411
Topological Polar Surface Area:67.5
Heavy Atom Count:12
Complexity:197
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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Business licensedTrader Supplier of pregabalin,Tirzepatide,Retatrutide,Food Additives,semaglutide,Cosmetics material,Food additive,Chemical intermediate,Active pharmaceutical ingredientsInquiryCAS No.: 25940-35-6Grade: Pharmaceutical GradeContent: 99.9%
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PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID
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