-
Name
N-BUTYLTHIOUREA
- EINECS
- CAS No. 1516-32-1
- Article Data25
- CAS DataBase
- Density 1.028g/cm3
- Solubility
- Melting Point 77-78°C
- Formula C5H12 N2 S
- Boiling Point 202.2°Cat760mmHg
- Molecular Weight 132.23
- Flash Point 76.1°C
- Transport Information
- Appearance
- Safety A poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes of NOx and SOx.
- Risk Codes 36/37/38
-
Molecular Structure
- Hazard Symbols R22:Harmful if swallowed.;
- Synonyms Thiourea,butyl- (9CI); Urea, 1-butyl-2-thio- (6CI,7CI,8CI); 1-Butyl-2-thiourea;1-Butylthiourea; Butylthiourea; N-Butylthiourea; NSC 202953
- PSA 70.14000
- LogP 1.71090
n-Butyl thiourea Chemical Properties
IUPAC Name: Butylthiourea
Synonyms of n-Butyl thiourea (CAS NO.1516-32-1): 1-Butyl-2-thiourea ; N-Butylthiourea ; Butyl-2-thiourea ; Thiourea, N-butyl- ; Thiourea, butyl- ; Urea, 1-butyl-2-thio-
CAS NO: 1516-32-1
Molecular Formula: C5H12N2S
Molecular Weight : 132.2272
Molecular Structure: 
EINECS: 216-165-9
H bond acceptors: 2
H bond donors: 3
Freely Rotating Bonds: 3
Polar Surface Area: 38.57 Å2
Index of Refraction: 1.528
Molar Refractivity: 39.63 cm3
Molar Volume: 128.5 cm3
Surface Tension: 45.9 dyne/cm
Density: 1.028 g/cm3
Flash Point: 76.1 °C
Enthalpy of Vaporization: 43.84 kJ/mol
Boiling Point: 202.2 °C at 760 mmHg
Vapour Pressure: 0.296 mmHg at 25°C
Melting Point: 77-78°C
n-Butyl thiourea Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 300mg/kg (300mg/kg) | National Technical Information Service. Vol. AD277-689, |
n-Butyl thiourea Consensus Reports
Reported in EPA TSCA Inventory.
n-Butyl thiourea Safety Profile
Risk Statements: 36/37/38
R36/37/38: N-Butyl thiourea (CAS NO.1516-32-1) is irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: 2811
RTECS: YS4375000
PackingGroup: III
A poison by intraperitoneal route. When N-Butyl thiourea (CAS NO.1516-32-1) is heated to decomposition ,it emits very toxic fumes of NOx and SOx.
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