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Cas Database |
| Name |
4-Bromo-3,5-dimethylpyrazole |
EINECS | 222-263-2 |
| CAS No. | 3398-16-1 | Density | 1.595 g/cm3 |
| PSA | 28.68000 | LogP | 1.78900 |
| Solubility | Solubility in water | Melting Point |
119-121 ºC |
| Formula | C5H7 Br N2 | Boiling Point | 269.1 °C at 760 mmHg |
| Molecular Weight | 175.028 | Flash Point | 116.5 °C |
| Transport Information | N/A | Appearance | pale white or light yellow crystal powder |
| Safety | S26;S37/39 | Risk Codes | R36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
|
| Synonyms |
Pyrazole,4-bromo-3,5-dimethyl- (6CI,7CI,8CI); 3,5-Dimethyl-4-bromopyrazole;4-Bromo-3,5-dimethyl-1H-pyrazole; 4-Bromo-3,5-dimethylpyrazole; GF 12; NSC50564 |
Article Data | 35 |
4-Bromo-3,5-dimethylpyrazole Chemical Properties
IUPAC Name: 4-Bromo-3,5-dimethyl-1H-pyrazole
Systematic of 1H-Pyrazole,4-bromo-3,5-dimethyl- (CAS NO.3398-16-1): 4-Bromo-3,5-dimethylpyrazole ; 5-23-05-00154 (Beilstein Handbook Reference) ; BRN 0108534 ; EINECS 222-263-2 ; GF 12 ; NSC 50564 ; 4-Bromo-3,5-dimethyl-1H-pyrazole ; Pyrazole, 4-bromo-3,5-dimethyl-
CAS NO: 3398-16-1
Classification Code: Drug / Therapeutic Agent
Molecular Formula of 1H-Pyrazole,4-bromo-3,5-dimethyl- (CAS NO.3398-16-1): C5H7BrN2
Molecular Weight: 175.0265
Molecular Structure:
.png)
Melting Point: 123-125 °C
H bond acceptors: 2
H bond donors: 1
Polar Surface Area: 17.82 Å2
Index of Refraction: 1.572
Molar Refractivity: 36.11 cm3
Molar Volume: 109.7 cm3
Surface Tension: 46.7 dyne/cm
Density of 1H-Pyrazole,4-bromo-3,5-dimethyl- (CAS NO.3398-16-1): 1.595 g/cm3
Flash Point: 116.5 °C
Enthalpy of Vaporization: 48.68 kJ/mol
Boiling Point: 269.1 °C at 760 mmHg
Vapour Pressure: 0.0122 mmHg at 25°C
4-Bromo-3,5-dimethylpyrazole Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 580mg/kg (580mg/kg) | PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Farmakologiya i Toksikologiya Vol. 28, Pg. 670, 1965. |
4-Bromo-3,5-dimethylpyrazole Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39: Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: UQ6210000
HazardClass: IRRITANT
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