Chemical Name: 2,4-Difluorocinnamic acid
IUPAC NAME: (E)-3-(2,4-Difluorophenyl)prop-2-enoic acid
CAS No.: 774-73-2
Molecular Formula: C₉H₆F₂O₂
Molecular Weight: 184.14 g/mol
Melting Point: 216-218 °C(lit.)
Density: 1.379 g/cm³ 
Flash Point: 118.3 °C
Boiling Point: 272 °C at 760 mmHg
Following is the structure of 2,4-Difluorocinnamic acid (774-73-2):

Product Categories about 2,4-Difluorocinnamic acid (774-73-2) are Fluoro-contained cinnamic acid series ; Aromatic Cinnamic Acids, Esters and Derivatives ; Miscellaneous
The chemical synonymous of 2,4-Difluorocinnamic acid (774-73-2) are trans-2,4-Difluorocinnamic acid ; 2,4-Difluorocinnamic acid ; (2e)-3-(2,4-Difluorophenyl)-2-propenoic acid ; 3-(2,4-Difluorophenyl)-2-propenoic acid ; 3-(2,4-Difluorophenyl)acrylic acid

Hazard Codes:
    Xi: Irritant
Risk Statements about 2,4-Difluorocinnamic acid (774-73-2):
    R36/37/38 Irritating to eyes, respiratory system and skin.
Safety Statements about 2,4-Difluorocinnamic acid (774-73-2):
    S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
    S37/39 Wear suitable gloves and eye/face protection.

1. Storage: Store in a cool, dry place. Store in a tightly closed container.
2. Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
3. Personal Protection: Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.Skin: Wear appropriate protective gloves to prevent skin exposure.Clothing: Wear appropriate protective clothing to prevent skin exposure.Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
4. Fire Fighting: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.