The following MSDS detailed information are provided by Nanjing Aily Biotechnology Co., Ltd, one specialized Tiglic acid supplier in China.

1. Product and Company Identification

Catalog Numbers: 32E7-0
Product Name: (E)-2-methyl-2-butenoic acid
Trade Name: trans-2,3-Dimethylacrylic acid
Synonyms: trans-2-Methyl-2-butenoic acid;Tiglic acid

2. Hazards Identification

Emergency Overview: Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye: -
Skin: -
Ingestion: -
Inhalation: -
Chronic: -

3. Composition/Information on Ingredients

Chemical Name: trans-2,3-Dimethylacrylic acid
Molecular Formula: C₅H₈O₂
Molecular Weight: 100.11
Content: 98%
CAS Number: 80-59-1
EINECS NO. [EC No]: 201-295-0

4. First Aid Measures

Eye: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.
Skin: Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation: Remove from exposure and move to fresh air immediately.

5. Fire Fighting Measures

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing: In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

6. Accidental Release Measures

General Information: Use proper personal protective equipment as listed in Section 8.
Spills/Leaks: Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal.

7. Handling and Storage

Handling: Refer to section 8
Storage: 1.Keep refrigerated.(Store below 4 ℃)
2.Keep in a cool,dry place
3.Keep container tightly closed

8. Exposure Controls/Personal Protection

Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash and a safety shower facility.
Personal Protective Equipment
Eyes: Wear chemical safety goggles.
Skin: Wear appropriate protective gloves.
Clothing: Wear appropriate protective clothing.
Repirators: Wear NIOSH/MSHA - approved respirator

9. Physical and Chemical Properties

Physical State: Powder and chunks
Color: white - beige
Odor: -
Boiling Point: 198.4 (760mmHg)
Melting Point : 61-64
Vapor Pressure : -
Specific Gravity : 0.96
PH: -
Solubility in Water : soluble in hot water
Flash Point: -
Autoignition Temperature : -
Decomposition Temperature : -

10. Stability and Reactivity

Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Incompatible materials, strong oxidants.
Incompatibilities with Other: Oxidizing agents, reducing agents, bases.
Hazardous Decomposition Products : Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Polymerization : Has not been reported.

11. Toxicological Information

RTECS#: GQ5430000
Toxicity Data[LD50/LC50]: Draize test, rabbit, skin: 500 mg/24H Severe; Oral, rat: LD50 = >5 gm/kg; Skin, rabbit: LD50 = >5 gm/kg.
Carcinogenicity: -
Other: See actual entry in RTECS for complete information.

12. Ecological Information

Ecotoxicity: -
Other: -

13. Disposal Considerations

Disposal considerations: Contact a licensed professional waste disposal service to dispose of this material in a manner consistent with federal, state and local environmental regulations

14. Transport Information

Shipping Name: -
Hazard Class: -
UN Number: -
Packing Group: -

15. Regulatory Information

European/International Regulations: -
European Labeling in Accordance with EC Directives
Hazard Symbols: 1.Xi
R-Phrases: 1.Irritating to eyes.
2.Irritating to respiratory system.
3.Irritating to skin.
S-Phrases: 1.Avoid contact with skin. S24/25 Avoid contact with skin and eyes.
2.Avoid contact with eyes.
WGK(Water Danger/Protection): -
US Federal TSCA: CAS# 80-59-1 is listed on the TSCA inventory.