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1-tert-butyl-1H-pyrazole-4-carboxylic acid

1-tert-butyl-1H-pyrazole-4-carboxylic acid Structure
1-tert-butyl-1H-pyrazole-4-carboxylic acid structure
CAS No.
950858-65-8
Chemical Name:
1-tert-butyl-1H-pyrazole-4-carboxylic acid
Synonyms
1-tert-butylpyrazole-4-carboxylic acid;1-tert-butyl-1H-pyrazole-4-carboxylic acid;1-(tert-Butyl)-1H-pyrazol-4-carboxylic acid;1-(1,1-Dimethylethyl)-1H-pyrazole-4-carboxylic acid;1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-
CBNumber:
CB71633189
Molecular Formula:
C8H12N2O2
Molecular Weight:
168.19
MDL Number:
MFCD09934934
MOL File:
950858-65-8.mol
MSDS File:
SDS
Last updated:2026-05-28 03:35:41
Request For Quotation

1-tert-butyl-1H-pyrazole-4-carboxylic acid Properties

Boiling point 306.2±15.0 °C(Predicted)
Density 1.15±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
pka 3.91±0.10(Predicted)
Appearance White to off-white Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P261-P280-P305+P351+P338

1-tert-butyl-1H-pyrazole-4-carboxylic acid price More Price(42)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth ANB85865 1-tert-Butyl-1H-pyrazole-4-carboxylic acid 950858-65-8 2.5g $312.5 2026-06-04 Buy
Activate Scientific AS41226 1-tert-Butyl-1H-pyrazole-4-carboxylic acid 98% 950858-65-8 1g $106 2026-06-04 Buy
Activate Scientific AS41226 1-tert-Butyl-1H-pyrazole-4-carboxylic acid 98% 950858-65-8 5g $333 2026-06-04 Buy
Activate Scientific AS41226 1-tert-Butyl-1H-pyrazole-4-carboxylic acid 98% 950858-65-8 25g $1027 2026-06-04 Buy
Matrix Scientific 310362 1-tert-Butyl-1H-pyrazole-4-carboxylic acid 950858-65-8 250.00mg $21 2026-05-19 Buy
Product number Packaging Price Buy
ANB85865 2.5g $312.5 Buy
AS41226 1g $106 Buy
AS41226 5g $333 Buy
AS41226 25g $1027 Buy
310362 250.00mg $21 Buy

1-tert-butyl-1H-pyrazole-4-carboxylic acid Chemical Properties, Uses, Production

Synthesis

ethyl 1-tert-butyl-1H-pyrazole-3-carboxylate

682757-49-9

1-tert-butyl-1H-pyrazole-4-carboxylic acid

950858-65-8

General procedure for the synthesis of 1-tert-butyl-1H-pyrazole-4-carboxylic acid from ethyl 1-tert-butyl-1H-pyrazole-3-carboxylate: 1. In 8 mL of THF-MeOH-H2O (3:1:1, v/v) mixed solvent, ethyl 1-tert-butyl-1H-pyrazole-3-carboxylate (327 mg, 1.66 mmol) and LiOH (120 mg, 5.0 mmol) were added. 2. The reaction mixture was stirred at 25 °C for 12 hours. 3. After completion of the reaction, H2O and EtOAc were added to the mixture and acidified with 10% HCl solution. 4. The organic layer was separated, dried with Na2SO4 and concentrated under reduced pressure to afford the target product 1-tert-butyl-1H-pyrazole-4-carboxylic acid (217 mg, 78% yield). Mass spectral data: m/z 168.

References

[1] Patent: WO2007/71963, 2007, A2. Location in patent: Page/Page column 59

1-tert-butyl-1H-pyrazole-4-carboxylic acid Preparation Products And Raw materials

Raw materials

ethyl 1-tert-butyl-1H-pyrazole-3-carboxylate 4-bromo-1-tert-butyl-1H-pyrazole Lithium hydroxide Water Tetrahydrofuran
Ethyl acetate Methanol Hydrochloric acid

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Preparation Products

1-tert-butyl-1H-pyrazole-4-carboxylic acid Suppliers

Global Suppliers ( 77)
Supplier Tel Email Country ProdList Advantage
Nanjing Chemlin Chemical Co., Ltd 025-83697070 13770331960 info@chemlin.com.cn China 16306 64
QINGDAO CARELONGPHARMATECH CO.,LTD 053288191853 13061484198 sales@carelongchem.com China 455 57
Shanghai T&W Pharmaceutical Co., Ltd. +86 21 61551611 China 9874 58
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Suzhou Lakestar Pharmatech Co., Ltd. 0512-63970158-603 18018108880 info@lakestarpharma.com China 401 59
Changsha Luxing Bio-Chem Technology Co., Ltd. 0731-88827538 15574813303 luxingbc@126.com China 1975 65
Cool Pharm, Ltd 021-60455363 18019463053 sales@coolpharm.com China 8455 58
Nanjing Chemcn Pharmaceutical Co., Ltd. 18114022054; 18114022054 3317707757@qq.com China 301 55
skychemical Co.Ltd 021-20960837,QQ1332204249 sales@skychemical.com China 3338 55
Nanjing Abix Biochemical Technology Co., Ltd. 025-87193546 18652950785; chemweiao@163.com China 9009 60
Supplier Advantage
Nanjing Chemlin Chemical Co., Ltd 64
QINGDAO CARELONGPHARMATECH CO.,LTD 57
Shanghai T&W Pharmaceutical Co., Ltd. 58
Bide Pharmatech Ltd. 60
Suzhou Lakestar Pharmatech Co., Ltd. 59
Changsha Luxing Bio-Chem Technology Co., Ltd. 65
Cool Pharm, Ltd 58
Nanjing Chemcn Pharmaceutical Co., Ltd. 55
skychemical Co.Ltd 55
Nanjing Abix Biochemical Technology Co., Ltd. 60

View Latest Price from 1-tert-butyl-1H-pyrazole-4-carboxylic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-tert-butyl-1H-pyrazole-4-carboxylic acid pictures 2020-01-14 1-tert-butyl-1H-pyrazole-4-carboxylic acid
950858-65-8
 $7.00 1KG 99% 1000kg Career Henan Chemical Co

1-tert-butyl-1H-pyrazole-4-carboxylic acid Spectrum

1-tert-butyl-1H-pyrazole-4-carboxylic acid(950858-65-8)1HNMR

950858-65-8 (1-tert-butyl-1H-pyrazole-4-carboxylic acid) Related Search:

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1-tert-butyl-1H-pyrazole-4-carboxylic acid 1-tert-butylpyrazole-4-carboxylic acid 1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)- 1-(1,1-Dimethylethyl)-1H-pyrazole-4-carboxylic acid 1-(tert-Butyl)-1H-pyrazol-4-carboxylic acid 950858-65-8