ChemicalBook >> CAS DataBase List >>1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester

CAS No.
10250-59-6
Chemical Name:
1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester
Synonyms
1,3-diMethyl-, Methyl ester;methyl 2,5-dimethylpyrazole-3-carboxylate;methyl 1,3-dimethylpyrazole-5-carboxylate;Methyl 1,3-dimethyl-1H-pyrazol-5-carboxylate;Methyl 1,3-diMethyl-1H-pyrazole-5-carboxylate;Methyl 2,5-dimethyl-2H-pyrazole-3-carboxylate;Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate;Methyl 1,3-Dimethyl-1H-Pyrazole-5-Carboxylate(WXC00828);2,5-dimethyl-2H-pyrazole-3-carboxylic acid methyl ester;1,3-Dimethyl-1H-pyrazole-5-carboxylic acid methyl ester
CBNumber:
CB41511745
Molecular Formula:
C7H10N2O2
Molecular Weight:
154.17
MDL Number:
MFCD06204177
MOL File:
10250-59-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:52:25

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester Properties

Boiling point 242.0±20.0 °C(Predicted)
Density 1.150 g/mL at 25 °C
refractive index n20/D1.491
Flash point 78℃
storage temp. Sealed in dry,Room Temperature
form liquid
pka 0.94±0.10(Predicted)
Appearance Colorless to light yellow Liquid
InChI 1S/C7H10N2O2/c1-5-4-6(7(10)11-3)9(2)8-5/h4H,1-3H3
InChIKey KYQGPXFQWUSRMY-UHFFFAOYSA-N
SMILES COC(=O)c1cc(C)nn1C
UNSPSC Code 12352100

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P280-P305+P351+P338
Hazard Codes  Xn
Risk Statements  22
RIDADR  NA 1993 / PGIII
WGK Germany  1
HS Code  2933199090
Storage Class 10 - Combustible liquids not in Storage Class 3
Hazard Classifications Acute Tox. 4 Oral

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 732664 Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate 10250-59-6 250mg $115 2023-01-07 Buy
Usbiological 284673 Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Asreported 10250-59-6 1g $346 2026-06-03 Buy
Usbiological 284673 Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Asreported 10250-59-6 2g $476 2026-06-03 Buy
Usbiological 284673 Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Asreported 10250-59-6 5g $784 2026-06-03 Buy
Usbiological 284673 Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate Asreported 10250-59-6 10g $1093 2026-06-03 Buy
Product number Packaging Price Buy
732664 250mg $115 Buy
284673 1g $346 Buy
284673 2g $476 Buy
284673 5g $784 Buy
284673 10g $1093 Buy

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester Chemical Properties, Uses, Production

Uses

Methyl 1,3-Dimethyl-1H-pyrazole-5-carboxylate is used as a reactant in the preparation of pyrazolyl acrylonitrile derivatives as acaricides.

Synthesis

5-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID METHYL ESTER

25016-17-5

Dimethyl sulfate

77-78-1

1H-PRRAZOLE-5-CARBOXYLIC ACID ,1,3-DIMETHYL METHYL ESTER

10250-59-6

1. dissolve methyl 5-methyl-1H-pyrazole-3-carboxylate (6.8 kg) in N,N-dimethylformamide (DMF, 8 L). 2. dimethyl sulfate (6.0 L) was slowly added dropwise over a period of 3 h. The rate of dropwise acceleration was controlled to maintain the reaction temperature at no more than 90°C. 3. After completion of the dropwise addition, the reaction mixture was heated and stirred at 80 °C for 18 hours. 4. After completion of the reaction, the mixture was cooled to room temperature, ice (3.4 kg) was added and further cooled in an ice bath. 5. 28% aqueous ammonium hydroxide solution (8.6 L) was slowly added to the reaction mixture over a period of 3 hours. 6. The resulting mixture was stirred for 18 hours and then diluted with ethyl acetate (12 L) and water (16 L), extracted and the organic layer was separated. 7. The organic layer was washed with water (4 L), dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give the crude product of methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate (5.14 kg, yield 69%, HPLC purity >90%). 8. The crude product was used directly in the subsequent reaction without further purification.

References

[1] Patent: WO2006/48761, 2006, A2. Location in patent: Page/Page column 33
[2] Journal of Agricultural and Food Chemistry, 2016, vol. 64, # 51, p. 9586 - 9591

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester Preparation Products And Raw materials

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester Suppliers

Global Suppliers ( 61)
Supplier Tel Email Country ProdList Advantage
Nanjing Habo Medical Technology Co., Ltd. 13376080562 13376090521 sales@habotech.com China 724 60
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Shanghai Sphchem Co., Ltd. 021-56491756 13512199871 2819742715@qq.com China 3994 55
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
PingHeAnKang Pharmaceutical Co., Ltd. 18086832706 phakzjtxs@phak.cn China 138 58
Wuhan Chemduro Pharm Tech Co. Ltd. 18040571231/1402788087 China 1972 58
Changsha Luxing Bio-Chem Technology Co., Ltd. 0731-88827538 15574813303 luxingbc@126.com China 1975 65
Nanjing YiFan Biological Technology Co., Ltd. 025-025-52700520 18914499889 sales@yfbiotech.com China 494 58
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80

1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester Spectrum

1H-Pyrazole-5-carboxylic acid, 1,3-diMethyl-, Methyl ester Methyl 1,3-diMethyl-1H-pyrazole-5-carboxylate 1,3-Dimethyl-1H-pyrazole-5-carboxylic acid methyl ester Methyl 2,5-dimethyl-2H-pyrazole-3-carboxylate 2,5-dimethyl-2H-pyrazole-3-carboxylic acid methyl ester 1,3-diMethyl-, Methyl ester Methyl 1,3-Dimethyl-1H-Pyrazole-5-Carboxylate(WXC00828) methyl 2,5-dimethylpyrazole-3-carboxylate Methyl 1,3-dimethyl-1H-pyrazol-5-carboxylate Methyl 1,3-dimethyl-1H-pyrazole-5-carboxylate methyl 1,3-dimethylpyrazole-5-carboxylate 1H-Prrazole-5-carboxylic acid ,1,3-dimethyl methyl ester 10250-59-6