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trans-Crotonic acid

CAS Number
107-93-7
EC Number
203-533-9
Chemical Formula
C4H6O2
Molecular Weight
86.09 g/mol
Industries:Personal Care & CosmeticsFood & Nutrition

Description

Trans-Crotonic acid (CAS 107-93-7 ), also known by its FEMA 3908 designation, is an unsaturated organic acid used as a flavoring agent and acidulant in food and cosmetic applications. It functions as a pH regulator, preservative component, and reactive monomer in polymer synthesis for coating and adhesive systems. In food and beverage formulations, it contributes flavor modulation and mild acidulant activity. The material is recognized under its FEMA code for use in approved flavoring compositions. Cosmetic and personal care formulators incorporate it into film-forming polymers and fixative resins for hair care products. In these applications, it provides controlled hold and flexibility. In industrial coating systems, it acts as a copolymerizable monomer to modify resin hardness, adhesion, and film durability for various surfaces. Its buffering capacity also makes it relevant in preservation systems where pH control supports antimicrobial efficacy. Trans-Crotonic acid is supplied as a white to off-white crystalline solid for industrial use. Standard commercial grades include food-grade material meeting FEMA specifications and technical-grade product for polymer applications. Packaging is typically offered in kilogram quantities for specialty use and larger bulk formats. Contact us for supply of trans-Crotonic acid Request Quote

Other Names (Synonyms)

trans-2-butenoic acid | Butenoic Acid | (E)-but-2-enoic acid | (2E)-2-butenoic acid | beta-methylacrylic acid | beta-methacrylic acid | alpha-crotonic acid | alpha-butenoic acid

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point72 °C
Boiling Point185 °C
Density1.027 g/mL at 25 °C(lit.)
Flash Point190 °F
AppearanceWhite to light yellow crystalline flakes
ColorWhite to light yellow
Odorat 1.00 %. milky
FormCrystalline Flakes
Water Solubility94 g/L (25 ºC)
Vapor Pressure0.19 mm Hg ( 20 °C)
Refractive Index1.4228
pH3 (10g/l, H2O, 20℃)
Log P0.85 at 25℃

Safety & Handling

Danger
GHS05· CorrosiveGHS07· IrritantGHS06· Toxic

Hazard Statements

H302Harmful if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29161940
UN Number2823
ADR Class8
Packing GroupIII
Storage Class8A - Combustible corrosive hazardous materials
WGK (Germany)3