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N29902

Sigma-Aldrich

Nonanoic acid

96%

Synonym(s):

Acid C9, Pelargonic acid

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About This Item

Linear Formula:
CH3(CH2)7COOH
CAS Number:
112-05-0
Molecular Weight:
158.24
Beilstein:
1752351
EC Number:
203-931-2
MDL number:
MFCD00004433
UNSPSC Code:
12352100
PubChem Substance ID:
24897609
NACRES:
NA.22

vapor density

5.5 (vs air)

Quality Level

100

vapor pressure

<0.1 mmHg ( 20 °C)

Assay

96%

form

liquid

expl. lim.

9 %

refractive index

n20/D 1.432 (lit.)

bp

268-269 °C (lit.)

mp

9 °C (lit.)

density

0.906 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCC(O)=O

InChI

1S/C9H18O2/c1-2-3-4-5-6-7-8-9(10)11/h2-8H2,1H3,(H,10,11)

InChI key

FBUKVWPVBMHYJY-UHFFFAOYSA-N

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

278.6 °F - Pensky-Martens closed cup

Flash Point(C)

137 °C - Pensky-Martens closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBK8899
STBJ7447
STBJ4581
STBJ2245
STBJ1494

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Heptanoic acid &#8805;99.0% (GC)

Sigma-Aldrich

75190

Heptanoic acid

Flemming Andersen et al.
Contact dermatitis, 55(3), 148-154 (2006-08-22)
The term 'anti-irritant' (AI) was coined in 1965 by Goldemberg to describe a diverse group of topical product ingredients, which were able to reduce the irritation potential of other more irritating ingredients in the same product. 'AIs' are being added
Flemming Andersen et al.
Contact dermatitis, 55(3), 155-159 (2006-08-22)
So-called anti-irritants (AI) are widely used in cosmetic formulations, with the aim of reducing irritation from substances in the formulation. It may also be claimed that they are 'soothing' and 'healing' ingredients. However, the proof for these claims is circumstantial.
Natalia Kuzmina et al.
Contact dermatitis, 49(1), 26-31 (2003-12-04)
To assess interlaboratory variability in the measurement of skin electrical impedance (IMP), we evaluated irritant reactions to sodium lauryl sulfate (SLS) (2%) and nonanoic acid (NAA) (40%) in 2 laboratories. We studied the patch test responses in 40 healthy male
Anders Clemmensen et al.
The Journal of investigative dermatology, 130(9), 2201-2210 (2010-04-30)
The pathogenesis of irritant contact dermatitis (ICD) is poorly understood, and genes participating in the epidermal response to chemical irritants are only partly known. It is commonly accepted that different irritants have different mechanisms of action in the development of
Zhiyong Sun et al.
Applied microbiology and biotechnology, 74(1), 69-77 (2006-10-26)
Pseudomonas putida KT2440 grew on glucose at a specific rate of 0.48 h(-1) but accumulated almost no poly-3-hydroxyalkanoates (PHA). Subsequent nitrogen limitation on nonanoic acid resulted in the accumulation of only 27% medium-chain-length PHA (MCL-PHA). In contrast, exponential nonanoic acid-limited
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Protocols

GC Analysis of Free Fatty Acids in Parmesan Cheese using Nukol™ after SPME using 65 μm Carbowax/DVB Fiber

In this study, SPME was used for the analysis of free fatty acids in Parmesan cheese using a 65 μm Carbowax/divinylbenzene (DVB) SPME fiber. Headspace extraction of the cheese sample was conducted at 65 °C for 15 minutes and analyzed by GC with FID detection. SPME is ideal for analyzing the volatiles associated with solid food samples. The phase chemistry of the Nukol GC column provides excellent peak shape of acidic compounds.

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