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Home> Encyclopedia > Hot Product Listed 9   > 9,12-Octadecadienoicacid (9Z,12Z)-
60-33-3 structure

9,12-Octadecadienoicacid (9Z,12Z)-

CAS No.:60-33-3
EINECS(EC#): 200-470-9
Molecular Weight:280.44548
Molecular Formula:C18H32O2 (isomer)
Properties
Appearance
colourless or light yellow liquid
Density
0.902
Melting Point
-5℃
Boiling Point
229-230℃ (16 mmHg)
Refractive Index
1.4687-1.4707
Flash Point
>230 °F
Solubility
INSOLUBLE
Color/Form
Colorless oil
Colorless to straw-colored liquid
Stability
Stability Stable, but air and light sensitive. Combustible. Incompatible with strong oxidizing agents.
HS Code
2916150000
Storage temp
2-8°C
Spectral properties
Index of refraction: 1.4715 at 11.5 deg C/D, 1.4699 at 20 deg C/D, 1.4683 at 21.5 deg C/D, 1.4588 at 50 deg C/D
Index of refraction: 1.4710 at 15 deg C
MAX ABSORPTION (ALCOHOL): 232 NM (LOG E= 3.8), 275 NM (LOG E= 2.9); SADTLER REF NUMBER: 914 (IR, PRISM)
IR: 15092 (Sadtler Research Laboratories IR Grating Collection)
1H NMR: 8215 (Sadtler Research Laboratories Spectral Collection)
MASS: 107179 (NIST/EPA/MSDC Mass Spectral database, 1990 verson); 2211 (Atlas of Mass Spectral Data, John Wiley & Sons, New York)
Safety and Handling
Hazard Codes
Xi
Risk Statements
R36
Safety Statements
S24/25
Hazard Note
H225; H319
Safety

Hazard Codes of Linoleic acid (CAS NO.60-33-3):?Xi
Risk Statements: 36?
R36: Irritating to eyes.
Safety Statements: 26-24/25-36?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S24/25: Avoid contact with skin and eyes.?
S36: Wear suitable protective clothing.
WGK Germany: 1
RTECS: RF9990000
F: 8-10-23
A poison by intraperitoneal route. A human skin irritant. Ingestion can cause nausea and vomiting. When heated to decomposition it emits acrid smoke and irritating fumes.

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 280mg/kg (280mg/kg) ? Yakugaku Zasshi. Journal of Pharmacy. Vol. 104, Pg. 793, 1984.
mouse LD50 oral > 50gm/kg (50000mg/kg) ? United States Patent Document. Vol. #3728459,
rat LD50 intraperitoneal > 50gm/kg (50000mg/kg) ? Oyo Yakuri. Pharmacometrics. Vol. 4, Pg. 327, 1970.

Sensitive
Air Sensitive
Skin, Eye, and Respiratory Irritations
Mild local irritant. Ingestion can cause nausea and vomiting.
Fire Potential
Combustible
SPONTANEOUS COMBUSTION OF RAGS SOAKED WITH LINSEED OIL & LINOLEIC ACID SALTS PRESENTS FIRE HAZARD.
Formulations/Preparations
Grade: Technical, purified (99+%), edible.
Exposure Standards and Regulations
Linoleic acid used as a nutrient and/or dietary supplement in animal drugs, feeds, and related products is generally recognized as safe when used in accordance with good manufacturing or feeding practice.
Substance added directly to human food affirmed as generally recognized as safe (GRAS).
Protective Equipment and Clothing
Mild local irritant. Ingestion can cause nausea and vomiting.
Specification

Liquid at room temperature, colorless
Safety Statements:26-24/25-36
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
24/25:Avoid contact with skin and eyes
36:Wear suitable protective clothing
Octanol/Water Partition Coefficient
log Kow = 7.05
Report

Reported in EPA TSCA Inventory.

Disposal Methods
SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
1. Liquid acid may be injected at base of incinerator or after mixing with a flammable solvent. Afterburner is suggested for complete combustion.
MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word.

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

2.3 Other hazards which do not result in classification

none

Precursor and Product
Computational chemical data
  • Molecular Weight:280.44548g/mol
  • Molecular Formula:C18H32O2
  • XLogP3-AA:6.8
  • Exact Mass:280.24023
  • Monoisotopic Mass:280.24023
  • Complexity:267
  • Rotatable Bond Count:14
  • Hydrogen Bond Donor Count:1
  • Hydrogen Bond Acceptor Count:2
  • Topological Polar Surface Area:37.3
  • Heavy Atom Count:20
  • Defined Atom Stereocenter Count:0
  • Undefined Atom Stereocenter Count:0
  • Defined Bond Stereocenter Count:2
  • Undefined Bond Stereocenter Count:0
  • Isotope Atom Count:0
  • Covalently-Bonded Unit Count:1
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