Bis(tributyltin) oxide
[CAS# 56-35-9]

Identification

• Classification: Organic raw materials >> Organometallic compound >> Organotin
• Name: Bis(tributyltin) oxide
• Synonyms: Hexabutyldistannoxane; HBD
• Molecular Formula: C₂₄H₅₄OSn₂
• Molecular Weight: 596.10
• CAS Registry Number: 56-35-9
• EC Number: 200-268-0

Properties

• Density: 1.17
• Boiling point: 180 °C (2 mmHg)
• Refractive index: 1.4854-1.4874
• Water solubility: INSOLUBLE

Safety Data

• Hazard Symbols: T;N
• Risk Statements: R21;R25;R36/38;R48/23/25;R50/53
• Safety Statements: S35;S36/37/39;S45;S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	3	H301
Skin irritation	Skin Irrit.	2	H315
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	4	H312
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Acute toxicity	Acute Tox.	3	H331
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Reproductive toxicity	Repr.	1B	H360FD
Reproductive toxicity	Repr.	1B	H360
Acute toxicity	Acute Tox.	3	H311
Specific target organ toxicity - single exposure	STOT SE	3	H335
Reproductive toxicity	Repr.	2	H361
Acute toxicity	Acute Tox.	3	H312

• Transport Information: UN 2788