112-38-9

Name Undecenoic acid
CAS 112-38-9
EINECS(EC#) 203-965-8
Molecular Formula C11H20O2
MDL Number MFCD00004442
Molecular Weight 184.28
MOL File 112-38-9.mol
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Chemical Properties

Description
Undecylenic acid (C11) or also called 10-undecenoic acid is an organic unsaturated fatty acid derived from castor oil by cracking. Undecylenic acid is an FDA approved active ingredient in medications for skin infections, and relieves itching, burning, and irritation. In technical applications it is used because if its antifungal properties.appearance (25°C) White or very pale yellow crystalline
mass or clear colourless pale
yellow liquid
acid value mg KOH/g 295 - 304
saponification mg KOH/g 295 - 304
iodine value) gI2/100g 132 - 136
congealing point °C 23 - 24
Purity by GC % min. 99%
Appearance Light-colored liquid; fruity-rosy odor. Almost insoluble in water; miscible with alcohol, chloroform, ether, benzene, and fixed and volatile oils. Combustible.
Melting point  23-25 °C (lit.)
Boiling point  137 °C/2 mmHg (lit.)
density  0.912 g/mL at 25 °C(lit.)
vapor pressure  0.019Pa at 20℃
FEMA  3247
refractive index  n20/D 1.449(lit.)
Fp  300 °F
storage temp.  Store below +30°C.
solubility  water: insoluble
Colour Index  42650
form  Crystalline Low Melting Solid or Liquid
pka 4.78±0.10(Predicted)
color  Pale yellow
Specific Gravity 0.911 (25/25℃)
Odor sweet woody
biological source synthetic
Odor Type woody
Water Solubility  INSOLUBLE
JECFA Number 331
Merck  14,9848
BRN  1762631
Major Application flavors and fragrances
Cosmetics Ingredients Functions PRESERVATIVE
SURFACTANT - EMULSIFYING
SURFACTANT - CLEANSING
FRAGRANCE
ANTIMICROBIAL
InChI 1S/C11H20O2/c1-2-3-4-5-6-7-8-9-10-11(12)13/h2H,1,3-10H2,(H,12,13)
InChIKey FRPZMMHWLSIFAZ-UHFFFAOYSA-N
SMILES OC(=O)CCCCCCCCC=C
LogP 4 at 20℃
Uses
  1. silicon-based biosensors
  2. natural fungicide
  3. chemical intermediate in fragrance and flavours
  4. cosmetics & personal care: highly effective natural antimicrobial and preservative properties
  5. undecylenic acids-based diols and polyols
  6. additive in cutting fluids (fungicide or as triethanolamine salt as rust inhibiting additive)
CAS DataBase Reference 112-38-9(CAS DataBase Reference)
NIST Chemistry Reference Undecylenic Acid(112-38-9)
EPA Substance Registry System 112-38-9(EPA Substance)
Medicinal uses Undecylenic acid(112-38-9) is a natural fungicide and is FDA approved in over-the-counter medications for skin disorders or problems. Undecylenic acid(112-38-9) is the active ingredient in medications for skin infections, and relieves itching, burning, and irritation. For example, Undecylenic acid(112-38-9) is used against fungal skin infections such as athlete's foot, ringworm, Candida albicans. Undecylenic acid(112-38-9) is also used in the treatment of psoriasis. Undecylenic acid(112-38-9) is also proven to have anti-bacterial and anti-viral properties that are effective on viral skin infections such as the herpes simplex virus.
Major Usage Undecylenic acid (112-38-9) is a medium chain saturated fatty acid similar to caprylic acid. The main source is castor bean oil. It has strong antifungal properties and specialist nutritional supplements containing undecylenic acid are often prescribed by nutritionists and naturally orientated doctors for the treatment of Candida related illnesses such as intestinal overgrowth and thrush. Undecylenic acid (112-38-9) was the antifungal of choice in general medical practice before modern drugs were developed and remains popular as the active ingredient in topical antifungal preperations for the treatment of fungal skin infections such as athlete's foot and jock itch.
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H412
Precautionary statements  P264-P273-P280-P302+P352-P305+P351+P338-P332+P313
Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/38:Irritating to eyes and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing .
RIDADR  UN 3261 8/PG 2
WGK Germany  1
RTECS  YQ2975000
Autoignition Temperature 275 °C
TSCA  Yes
REACH Registrations Active
HS Code  29161910
Storage Class 11 - Combustible Solids
Hazard Classifications Aquatic Chronic 3
Eye Irrit. 2
Skin Irrit. 2
Toxicity
LD50 in mice (g/kg): 8.15 orally; 0.960 i.p. (Newell)

Raw materials And Preparation Products

Hazard Information

Material Safety Data Sheet(MSDS)

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