(E)-Octadec-11-enoic acid
[CAS# 693-72-1]

Identification

• Classification: Analytical chemistry >> Standard >> Food and beverage standards
• Name: (E)-Octadec-11-enoic acid
• Synonyms: 11-trans-Octadecenoic acid; trans-11-Octadecenoic acid; trans-Vaccenic acid
• Molecular Formula: C₁₈H₃₄O₂
• Molecular Weight: 282.46
• CAS Registry Number: 693-72-1
• EC Number: 211-758-9

Properties

• Solubility: Insoluble (2.3E^-3 g/L) (25 °C), Calc.^*
• Density: 0.899±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 44 °C^**
• Refractive index: 1.4472 (589.3 nm 50 °C)^***

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^*** Bounds, D. G.

Safety Data

• Hazard Symbols: Xi
• Risk Statements: R36/37/38
• Safety Statements: S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335