Huzhou Xinaote Pharmaceutical & Chemical Co., Ltd. urges the recipient of this Safety Data Sheet to study it
carefully to become aware of hazards, if any, of the product involved. In the interest of safety you should (1)
notify your employees, agents and contractors of the information on this sheet,(2) furnish a copy to each of
your customers for the product, and (3) request your customers to inform their employees and customers as
well.

1. IDENTIFICATION OF THE SUBSTANCE / PREPARATION AND OF
THE COMPANY / UNDERTAKING
Identification of the substance or preparation

Chemical name : Methy ltin Mercaptide

Company identification

Huzhou Xinaote Pharmaceutical & Chemical Co., Ltd.
Linghu Industrial Area, Huzhou, Zhejiang, P.R.China.
Tel: +86 (572)2123995
Fax:+86 (572)2128608

Emergency telephone number

+86-(572)2123995

Environmental, Health and Safety Department

+86-(572)2128608

2. COMPOSITION / INFORMATION ON INGREDIENTS
INGREDIENT/CAS# % BY WEIGHT HAZARD DANGER
SYMBOL(S)

< 80 Xn

Methyltin tris(2-ethylhexyl R22 R52 R53

mercaptoacetate) 57583-34-3

< 20 Xn

Dimethyltin bis(2-ethylhexyl
mercaptoacetate) 57583-35-4R21/22 R43 R48/22

R52
R53

3. HAZARDS IDENTIFICATION
Main hazards and effects:

Harmful in contact with skin and if swallowed. May cause sensitization by skin contact. Harmful: danger of
serious damage to health by prolonged exposure if swallowed. Harmful to aquatic organisms. May cause
long-term adverse effects in the aquatic environment. May cause harm to the unborn child.

4. FIRST AID MEASURES
Swallowing

Give medicinical activated charcoal 10 g in 100 ml water at 20 minute intervals (5 x). In case of spontaneous
vomiting ensure that vomitus can drain freely to avoid risk of suffocation. Drink water in small sips. (Diluting
effect) Do not induce vomiting. In case of inconsciousness or convulsion no oral administration. Obtain medical
attention immediately.

Inhalation

Remove to fresh air. In case of irritation of respiratory system or mucous membranes or if feeling unwell or
after prolonged exposure get medical attention.

Notes to physician

We refer to our brochure "Organotin compounds - advice on toxicology and safe handling".

5. FIRE-FIGHTING MEASURES
Special fire fighting procedures

Do not release chemically contaminated water into drains, soil or surface water.

Special protective equipment for firefighters

Wear self-contained breathing apparatus.

Unusual fire and explosion hazards

In case of a fire aside from the major combustion products carbon dioxide and carbon monoxide other harmful
gases and vapors may be formed.

6. ACCIDENTAL RELEASE MEASURES
Personal precautions

Do not breath vapors/aerosols. Eliminate sources of ignition. Avoid contact with skin
and eyes.

Environmental precautions

Prevent from entering sewer system, surface water or soil. Disposal: see section 13

Methods for cleaning up

Large quantities: Dike spilled product with liquid absorbing material and pump off. Small quantities: Soak up
with liquid absorbing material (sand etc.) and dispose of as instructed.

7. HANDLING AND STORAGE
HANDLING

Advice on safe handling

Avoid formation of vapors/aerosols.
Keep away from sources of ignition - No smoking.
Use only in well ventilated areas.
On occurence of vapors/aerosols take technical measures for effective exhaust.

Other precautions

The material is combustible and can form ignitable, explosive air/vapor mixtures. Take precautionary measures
against static discharges.

STORAGE

Storage requirements

Keep container tightly closed in a cool, well-ventilated place.

Further information on storage

Avoid contact with oxidizing agents or strong acids/bases.

8. EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE LIMITS

INGREDIENT VALUE REMARK TYPE

Tin, Organic compounds

MAK value, 8-hours average 0,1 mg/m3 value

PERSONAL PROTECTION

Respiratory protection

Particle filter P3 if technical measures for exhaust are insufficient.

Hand protection / protective gloves

Gauntlet type gloves of nitrile rubber or butyl rubber recommended; for short time contact PVC is suitable.

Eye protection

Safety glasses.

Skin protection

Chemical resistant protective clothing. Closed footwear

Industrial hygiene measures

When using do not eat, drink or smoke. Immediately remove contaminated clothing.

9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance
Physical state : Liquid
Color : Pale yellow
Odor : Slight alkanol
Other properties
Boiling point : > 250 °C at 1.013 hPa
Not distallable at normal conditions
Melting point : Not determined
Flash point : 115 °C
Method: Pensky-Martens closed cup ASTM D
93
Typically
: 239 °F
Thermal decomposition : > 200 °C
Density : 1,16 g/cm3
Typically
Vapor pressure : < 1,0 hPa
Vapor density (air=1) : Not determined
Evaporation rate (Butyl
Acetate=1) : < 1
Percent volatiles : Negligible
Solubility in water : Negligible

10. STABILITY AND REACTIVITY

STABILITY Incompatible materials

Oxidizing agents. Acids. Bases.

Hazardous combustion products

If handled as instructed: none

11. TOXICOLOGICAL INFORMATION
SWALLOWI

NG Chronic

effects

In animal studies with repeated oral application of dimethyl tin compounds toxic effects were observed on the

immune
system.
Test results
Acute toxicity : LD50 -Rat
Result: 1.145 -1.840 kg
mg/
SENSITIZATION
Test results : Effects to be expected
accordin g to calculation scheme laid down in EC-

Directive 88/379/EC and amendments and adaptions:, sensitizing

12. ECOLOGICAL INFORMATION
General

This product is stable in water, and can be mechanically separated from water. The water may be suitable for
disposal in a biological waste water treatment plant.

Persistence and degradability

Biodegradation : Methyltin compounds proved to be not readily
biodegradable in degradation tests.

13. DISPOSAL CONSIDERATIONS
Burn in compliance with operative regulations in a hazardous waste incinerator. Dispose of in
accordance with appropriate Federal, State, and local regulations.

Non-cleaned packages

Dispose of in the same way as product. Can be reused after cleaning. Dispose of washing solution in the same
way as product.

14. TRANSPORT INFORMATION
ADR/RID

Not classified as a dangerous
good.

IMDG

This product is not regulated by
IMDG.

ICAO

This product is not regulated by
ICAO.

15. REGULATORY INFORMATION
EC classification

Labelling according to EC-Directive 88/379/EEC, and amendments and

adaptions:
Danger : Xn
symbol(s)
Risk phrases : R22 Harmful if swallowed.
R43 May cause sensitization by skin contact.
R48/22 Harmful: danger of serious damage to health by onged
prol exposure if
swallowed.
R52 Harmful to aquatic organisms.
R53 May cause long-term adverse effects in the aquatic ronment.
envi
Safety phrases : S24 Avoid contact with skin.
S36/37/39 Wear suitable protective clothing, gloves and face
eye/ protection.
S61 Avoid release to the environment. Refer to special uctions/Safety
instr data
sheets.
Contains : Methyltin tris(2-ethylhexyl mercaptoacetate)
: Dimethyltin bis(2-ethylhexyl mercaptoacetate)

Chemical Inventory

Australia : The ingredients of this product are on the AICS inventory.
Canada : The ingredients of this product are on the DSL.
Europe : The ingredients of this product are on the EINECS inventory.
Japan : The ingredients of this product are on the ENCS inventory.
United States : The ingredients of this product are on the TSCA inventory.

16. OTHER INFORMATION
Further information

The opinions expressed herein are those of qualified experts within Huzhou Xinaote Pharmaceutical & Chemical
Co., Ltd.. We believe that the information contained herein is current as of the date of this Material Safety Data
Sheet. Since the use of this information and of these opinions and the conditions of use of this product are not
within the control of Huzhou Xinaote Pharmaceutical & Chemical Co., Ltd., it is the user’s obligation to
determine the conditions of safe use of the products.