Isothiocyanic acid butyl ester
[CAS# 592-82-5]

Identification

• Classification: Chemical reagent >> Organic reagent >> Thiocyanate / isothiocyanate
• Name: Isothiocyanic acid butyl ester
• Synonyms: 1-Isothiocyanatobutane; Butyl isothiocyanate; Butyl mustard oil; NSC 194808; n-Butyl isothiocyanate
• Molecular Formula: C₅H₉NS
• Molecular Weight: 115.2
• CAS Registry Number: 592-82-5
• EC Number: 209-770-4

Properties

• Density: 0.92
• Boiling point: 168 °C
• Flash point: 66 °C

Safety Data

• Hazard Symbols: C
• Risk Statements: R20/21/22;R34;R42
• Safety Statements: S23;S26;S36/37;S39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Acute toxicity	Acute Tox.	3	H301
Acute toxicity	Acute Tox.	2	H330
Acute toxicity	Acute Tox.	3	H311
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H312
Acute toxicity	Acute Tox.	4	H332
Skin sensitization	Skin Sens.	1	H317
Respiratory sensitization	Resp. Sens.	1	H334
Serious eye damage	Eye Dam.	1	H318
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	2	H310
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Flammable liquids	Flam. Liq.	4	H227

• Transport Information: UN 2927