3,5-Dimethylpyrazole
Names
[ CAS No. ]:
67-51-6
[ Name ]:
3,5-Dimethylpyrazole
[Synonym ]:
MFCD00005243
EINECS 200-657-5
3,5-Dimethyl-1H-pyrazole
1H-Pyrazole, 3,5-dimethyl-
Chemical & Physical Properties
[ Density]:
1.0±0.1 g/cm3
[ Boiling Point ]:
218.0±0.0 °C at 760 mmHg
[ Melting Point ]:
105-108 °C(lit.)
[ Molecular Formula ]:
C5H8N2
[ Molecular Weight ]:
96.130
[ Flash Point ]:
90.5±11.7 °C
[ Exact Mass ]:
96.068748
[ PSA ]:
28.68000
[ LogP ]:
1.24
[ Vapour Pressure ]:
0.2±0.4 mmHg at 25°C
[ Index of Refraction ]:
1.520
[ Water Solubility ]:
methanol: 0.1 g/mL, clear
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- UQ6477600
- CHEMICAL NAME :
- Pyrazole, 3,5-dimethyl-
- CAS REGISTRY NUMBER :
- 67-51-6
- BEILSTEIN REFERENCE NO. :
- 0106325
- LAST UPDATED :
- 199709
- DATA ITEMS CITED :
- 5
- MOLECULAR FORMULA :
- C5-H8-N2
- MOLECULAR WEIGHT :
- 96.15
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LD - Lethal dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- >500 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,23,1953
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 1060 mg/kg
- TOXIC EFFECTS :
- Behavioral - general anesthetic Behavioral - ataxia
- REFERENCE :
- GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 25(10),56,1981
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 570 mg/kg
- TOXIC EFFECTS :
- Behavioral - changes in motor activity (specific assay)
- REFERENCE :
- DPHFAK Dissertationes Pharmaceuticae et Pharmacologicae. (Warsaw, Poland) V.18-24, 1966-72. For publisher information, see PJPPAA. Volume(issue)/page/year: 18,19,1966 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1620 No. of Facilities: 89 (estimated) No. of Industries: 5 No. of Occupations: 7 No. of Employees: 315 (estimated) No. of Female Employees: 109 (estimated)
Safety Information
[ Symbol ]:
GHS07
[ Signal Word ]:
Warning
[ Hazard Statements ]:
H302-H315-H319-H335
[ Precautionary Statements ]:
P261-P305 + P351 + P338
[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves
[ Hazard Codes ]:
Xn:Harmful
[ Risk Phrases ]:
R22;R36/37/38
[ Safety Phrases ]:
S26-S36
[ RIDADR ]:
NONH for all modes of transport
[ WGK Germany ]:
3
[ RTECS ]:
UQ6477600
[ HS Code ]:
2933199090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2933199090
[ Summary ]:
2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
Articles
Rejuvenation Res. 12(2) , 77-84, (2009)
Aging is characterized by several metabolic changes responsible for the decline of certain functions and the appearance of age-related diseases, including hypercholesterolemia, which is the main risk ...
Vibrational spectra of 3,5-dimethylpyrazole and deuterated derivatives.Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 56A(8) , 1469-98, (2000)
The infrared (IR) and Raman spectra of 3,5-dimethylpyrazole have been recorded in the vapor, liquid (melt and solution) and solid states. Two deuterated derivatives, C5H7N-ND and C5D7N-NH, were also s...
Effects of antilipolytic agents on peroxisomal beta-oxidation of fatty acids in rat liver.Biochem. Pharmacol. 32(11) , 1807-9, (1983)