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1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester

CAS No.
578008-32-9
Chemical Name:
1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester
Synonyms
tert-butyl 3-aMino-5-Methyl-1H-pyrazole-1-carboxylate;1-Boc-3-Amino-5-methylpyrazole;3-Amino-1-Boc-5-methyl-1H-pyrazole;1-BOC-3-amino-5-methyl-1H-pyrazole;tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate;tert-Butyl 3-amino-5-methyl-1H-pyrazol-1-carboxylate;3-Amino-5-methylpyrazole-1-carboxylic acid tert-butyl ester;tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate - [B87012];1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester;1h-Pyrazole-1-Carboxylic Acid, 3-Amino-5-Methyl-, 1,1-Dimethylethyl Este
CBNumber:
CB01281817
Molecular Formula:
C9H15N3O2
Molecular Weight:
197.23
MDL Number:
MFCD13252375
MOL File:
578008-32-9.mol
Last updated:2026-07-20 17:44:43

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester Properties

Boiling point 322.7±34.0 °C(Predicted)
Density 1.18±0.1 g/cm3(Predicted)
storage temp. 2-8°C, protect from light
pka 2.89±0.11(Predicted)
Appearance White to yellow Solid
InChI InChI=1S/C9H15N3O2/c1-6-5-7(10)11-12(6)8(13)14-9(2,3)4/h5H,1-4H3,(H2,10,11)
InChIKey GJDCNROAKOCYIQ-UHFFFAOYSA-N
SMILES N1(C(OC(C)(C)C)=O)C(C)=CC(N)=N1

SAFETY

Risk and Safety Statements

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

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth DYA00832 tert-Butyl 3-amino-5-methyl-1H-pyrazole-1-carboxylate 578008-32-9 5g $584.1 2026-06-04 Buy
Biosynth DYA00832 tert-Butyl 3-amino-5-methyl-1H-pyrazole-1-carboxylate 578008-32-9 10g $778.8 2026-06-04 Buy
Biosynth DYA00832 tert-Butyl 3-amino-5-methyl-1H-pyrazole-1-carboxylate 578008-32-9 25g $1168.25 2026-06-04 Buy
Synthonix B87012 tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate 97% 578008-32-9 1g $40 2026-05-06 Buy
Synthonix B87012 tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate 97% 578008-32-9 5g $170 2026-05-06 Buy
Product number Packaging Price Buy
DYA00832 5g $584.1 Buy
DYA00832 10g $778.8 Buy
DYA00832 25g $1168.25 Buy
B87012 1g $40 Buy
B87012 5g $170 Buy

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester Chemical Properties, Uses, Production

Synthesis

3-Amino-5-methylpyrazole

31230-17-8

Di-tert-butyl dicarbonate

24424-99-5

tert-butyl5-amino-3-methyl-1H-pyrazole-1-carboxylate

1065204-79-6

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester

578008-32-9

GENERAL STEPS: 3-Amino-5-methyl-1H-pyrazole (2.0 g, 20.6 mmol) was dissolved in THF (40 ml) and cooled to 0 °C. NaH (95%, 0.57 g, 22.7 mmol) was added slowly with stirring. after 30 min, di-tert-butyl dicarbonate (Boc2O, 4.94 g, 22.7 mmol) was added and then the mixture was gradually warmed up to room temperature. The reaction mixture continued to be stirred at room temperature for 2 hours. After completion of the reaction, the mixture was poured into saturated aqueous NaHCO3 solution. The aqueous phase was extracted with CHCl3, the organic phases were combined and dried over Na2SO4. The solvent was removed by concentration under reduced pressure to give a crude mixture of 1-Boc-3-amino-5-methylpyrazole and its tert-butyl 2-carboxylate isomer. The separation and purification was carried out by silica gel column chromatography using ethyl acetate/heptane (2:1) as eluent. The target products 5-amino-3-methyl-1H-pyrazole-1-carboxylic acid tert-butyl ester and 1-Boc-3-amino-5-methylpyrazole were obtained in a yield of 2.4 g and 59%.1H-NMR (400 MHz, D6-DMSO): δ 5.60 (1H, s), 5.27 (2H, s), 2.34 (3H, s), 1.51 (9H, s); MS (ESI+): m/z = 198.26 ([M-H]+).

References

[1] Bioorganic and Medicinal Chemistry, 2016, vol. 24, # 9, p. 2114 - 2124
[2] Patent: WO2006/32518, 2006, A1. Location in patent: Page/Page column 200
[3] Patent: WO2012/30944, 2012, A2. Location in patent: Page/Page column 81-82
[4] Nucleosides, Nucleotides and Nucleic Acids, 2014, vol. 33, # 8, p. 552 - 582

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester Preparation Products And Raw materials

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester Suppliers

Global Suppliers ( 79)
Supplier Tel Email Country ProdList Advantage
Cool Pharm, Ltd 021-58581007 18019463053 sales@coolpharm.com China 9999 58
Jiaxing Hengrui Biotechnology Co. LTD 0573-0573-82672231 13757365595 regen_chemical1@163.com China 4858 58
Shanghai Topbiochem Technology Co., Ltd 021-58170097 info@topbiochem.com China 9513 58
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Tetranov Biopharm 13526569071 sales@leadmedpharm.com China 7881 64
Record Tech (Shanghai) Co., LTD 13761627472 183009664@qq.com China 660 62
Anhui Shite Pharmaceutical Technology Co., LTD 086-21-50829787 13621628489 sales1@stepuppharm.com China 253 55
AstaTech (Chengdu) Pharma. Co., Ltd. 15928766785 15928766785 wupengcheng@astatech.cn China 1995 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Shanghai ChuangYan Chemical Technology Co., Ltd. 021-11111111 11111111111 546919421@qq.com China 3770 55

View Latest Price from 1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
tert-butyl3-amino-5-methyl-pyrazole-1-carboxylate pictures 2026-07-20 tert-butyl3-amino-5-methyl-pyrazole-1-carboxylate
578008-32-9
1KG 98% 1000kgs Shaanxi Dideu New Materials Co. Ltd
1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester pictures 2020-01-10 1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester
578008-32-9
$6.00 1KG 98% 1kg, 5kg, 50kg Career Henan Chemical Co

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester Spectrum

1H-Pyrazole-1-carboxylicacid,3-amino-5-methyl-,1,1-dimethylethylester 3-Amino-5-methylpyrazole-1-carboxylic acid tert-butyl ester 3-Amino-1-Boc-5-methyl-1H-pyrazole tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate 1-BOC-3-amino-5-methyl-1H-pyrazole tert-Butyl 3-amino-5-methyl-1H-pyrazol-1-carboxylate 1-Boc-3-Amino-5-methylpyrazole tert-butyl 3-amino-5-methyl-pyrazole-1-carboxylate - [B87012] 1h-Pyrazole-1-Carboxylic Acid, 3-Amino-5-Methyl-, 1,1-Dimethylethyl Este tert-butyl 3-aMino-5-Methyl-1H-pyrazole-1-carboxylate 578008-32-9 AMINOACID