ChemicalBook > CAS DataBase List > 3,5-PYRAZOLEDICARBOXYLIC ACID

3,5-PYRAZOLEDICARBOXYLIC ACID

Product Name
3,5-PYRAZOLEDICARBOXYLIC ACID
CAS No.
3112-31-0
Chemical Name
3,5-PYRAZOLEDICARBOXYLIC ACID
Synonyms
1H-PYRAZOLE-3,5-DICARBOXYLIC ACID;3,5-PYRAZOLEDICARBOXYLIC ACID HYDRATE;LABOTEST-BB LT00451775;3,5-Dicarboxy-1H-pyrazole;Pyrazole-3,5-dicarboxylate;,5-Pyrazoledicarboxylic acid;3,5-pyrazoledicarboxylic aci;3,5-PYRAZOLEDICARBOXYLIC ACID;3,6-PYRAZOLEDICARBOXYLIC ACID;PYRAZOLE-3,5-DICARBOXYLIC ACID
CBNumber
CB8451514
Molecular Formula
C5H4N2O4
Formula Weight
156.1
MOL File
3112-31-0.mol
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3,5-PYRAZOLEDICARBOXYLIC ACID Property

Melting point:
292-295 °C (dec.)(lit.)
Boiling point:
614.4±40.0 °C(Predicted)
Density 
1.814±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
3.24±0.10(Predicted)
form 
Crystalline Powder
color 
White
InChI
InChI=1S/C5H4N2O4/c8-4(9)2-1-3(5(10)11)7-6-2/h1H,(H,6,7)(H,8,9)(H,10,11)
InChIKey
YDMVPJZBYSWOOP-UHFFFAOYSA-N
SMILES
N1C(C(O)=O)=CC(C(O)=O)=N1
CAS DataBase Reference
3112-31-0(CAS DataBase Reference)
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Safety

Risk Statements 
36/37/38
Safety Statements 
22-24/25
WGK Germany 
3
HS Code 
29331990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical
Product number
P3260
Product name
1H-Pyrazole-3,5-dicarboxylic Acid
Packaging
5G
Price
$95
Updated
2026/03/19
TCI Chemical
Product number
P3260
Product name
1H-Pyrazole-3,5-dicarboxylic Acid
Packaging
25G
Price
$286
Updated
2026/03/19
TCI Chemical
Product number
P1048
Product name
Pyrazole-3,5-dicarboxylic Acid Monohydrate
Purity
>98.0%(T)
Packaging
5g
Price
$100
Updated
2025/07/31
TCI Chemical
Product number
P1048
Product name
Pyrazole-3,5-dicarboxylic Acid Monohydrate
Purity
>98.0%(T)
Packaging
25g
Price
$284
Updated
2025/07/31
TRC
Product number
B529780
Product name
1H-Pyrazole-3,5-dicarboxylicAcid
Packaging
250mg
Price
$45
Updated
2021/12/16
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3,5-PYRAZOLEDICARBOXYLIC ACID Chemical Properties,Usage,Production

Chemical Properties

white crystalline powder

Synthesis

3,5-dimethylpyrazole (4.8g, 50mmol) and 40mL water were added to a 100mL three-necked flask, stirred at 60C, potassium permanganate (31.9g, 200mmol) was added in batches, the reaction temperature was kept at 85-90C, and the reaction was carried out for 2 hours, filtered, washed, and the filtrate was adjusted with concentrated hydrochloric acid to a pH 5-6, filtered, and dried to obtain 3,5-pyrazole dicarboxylic acid 5.4g, yield 69.2%, melting point (decomposition) 290-293 .

Purification Methods

It crystallises from water as a monohydrate, or EtOH. Dry it in a vacuum at 100o. The dimethyl ester crystallises from *C6H6 with m 155o. [Beilstein 25 III/IV 1047.]

3,5-PYRAZOLEDICARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Ethanol 3,5-Dimethylpyrazole Formaldehyde Chloroform Potassium permanganate Methanol

Preparation Products

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3,5-PYRAZOLEDICARBOXYLIC ACID Suppliers

Americas 1 Belgium 1 China 186 Europe 3 Germany 4 India 14 Japan 2 Switzerland 2 The Netherlands 2 United Kingdom 10 United States 26 Global 251
Chongqing Xingcan Pharmaceutical Technology Co., Ltd.
Tel
023-13650506873 19923294409
Email
xingcanyaoye@sina.com
Country
China
ProdList
1600
Advantage
58
Z IntellecChem & Tech. Co., Ltd
Tel
15050866711
Fax
QQ:2677337387
Email
contact@zintellec.com
Country
China
ProdList
302
Advantage
58
Shaanxi Cuikang Pharmaceutical Technology Co., Ltd
Tel
18049165724; 13186333400
Email
cuichengbio@163.com
Country
China
ProdList
4866
Advantage
58
Shanghai Boyle Chemical Co., Ltd.
Tel
Fax
86-21-57758967
Email
sales@boylechem.com
Country
China
ProdList
2922
Advantage
55
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing HwrkChemical Technology Co., Ltd
Tel
89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
9416
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44802
Advantage
61
Beijing Ouhe Technology Co., Ltd
Tel
13552068683 13522913783
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
11780
Advantage
60
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View Lastest Price from 3,5-PYRAZOLEDICARBOXYLIC ACID manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
3,5-PYRAZOLEDICARBOXYLIC ACID 3112-31-0
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20T
Release date
2024-08-11
Zhuozhou Wenxi import and Export Co., Ltd
Product
1H-pyrazole-3,5-dicarboxylic acid 3112-31-0
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-26
Career Henan Chemical Co
Product
3,5-PYRAZOLEDICARBOXYLIC ACID 3112-31-0
Price
US $1.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
100KG
Release date
2018-12-21

3112-31-0, 3,5-PYRAZOLEDICARBOXYLIC ACIDRelated Search:

DIMETHYL 4-IODO-1H-PYRAZOLE-3,5-DICARBOXYLATE 3,5-PYRAZOLEDICARBOXYLIC ACID 3,5-PYRAZOLEDICARBOXYLIC ACID MONOHYDRATE Pyrazole DIETHYL 1-(2-BROMO-ETHYL)-1H-PYRAZOLE-3,5-DICARBOXYLIC ACID 3,5-PYRAZOLEDICARBOXYLIC ACID DIETHYL ESTER 1-METHYL-1 H-PYRAZOLE-3,5-DICARBOXYLIC ACID DIETHYL ESTER DIMETHYL 1H-PYRAZOLE-3,5-DICARBOXYLATE 4-NITRO-1H-PYRAZOLE-3,5-DICARBOXYLIC ACID 1-METHYL-1H-PYRAZOLE-3,5-DICARBOXYLIC ACID DIMETHYL 1-(2-BROMOETHYL)-1H-PYRAZOLE-3,5-DICARBOXYLATE 1,3,5-TRIMETHYL-PYRAZOLE-3,5-DICARBOXYLATE 1-METHYL-1H-PYRAZOLE-3,5-DICARBOXYLIC ACID 5-ETHYL ESTER SALOR-INT L160504-1EA 5-(METHOXYCARBONYL)-1-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID PYRAZOLE-3,5-DICARBOXYLIC ACID, MONOPOTASSIUM SALT AKOS B006513 AURORA KA-3610

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