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| CAS No.: | 1516-32-1 |
|---|---|
| Name: | N-BUTYLTHIOUREA |
| Molecular Structure: | |
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| Formula: | C5H12 N2 S |
| Molecular Weight: | 132.23 |
| Synonyms: | Thiourea,butyl- (9CI); Urea, 1-butyl-2-thio- (6CI,7CI,8CI); 1-Butyl-2-thiourea;1-Butylthiourea; Butylthiourea; N-Butylthiourea; NSC 202953 |
| Density: | 1.028g/cm3 |
| Melting Point: | 77-78°C |
| Boiling Point: | 202.2°Cat760mmHg |
| Flash Point: | 76.1°C |
| Hazard Symbols: | R22:Harmful if swallowed.; |
| Risk Codes: | 36/37/38 |
| Safety: | A poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes of NOx and SOx. |
| PSA: | 70.14000 |
| LogP: | 1.71090 |
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Chemistry
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
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, |
Consensus Reports
Reported in EPA TSCA Inventory.
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.