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277509

Sigma-Aldrich

Methyl 2-octynoate

99%

Synonym(s):

Methyl heptine carbonate, NSC 72098

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About This Item

Linear Formula:
CH3(CH2)4C≡CCO2CH3
CAS Number:
111-12-6
Molecular Weight:
154.21
Beilstein:
1756887
EC Number:
203-836-6
MDL number:
MFCD00009530
UNSPSC Code:
12352100
PubChem Substance ID:
24856766
NACRES:
NA.22

Assay

99%

form

liquid

refractive index

n20/D 1.446 (lit.)

bp

217-220 °C (lit.)

density

0.92 g/mL at 25 °C (lit.)

SMILES string

CCCCCC#CC(=O)OC

InChI

1S/C9H14O2/c1-3-4-5-6-7-8-9(10)11-2/h3-6H2,1-2H3

InChI key

FRLZQXRXIKQFNS-UHFFFAOYSA-N

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General description

Methyl 2-octynoate has been quantitated as suspected allergen in cosmetic products by headspace-programmed temperature vaporization-fast gas chromatography-quadrupole mass spectrometry. It participates in nickel-catalyzed carbocyclization of 2-iodoacetophenone to yield a 2,3-disubstituted indenol.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H317,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 3 - Skin Sens. 1A

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

192.2 °F - closed cup

Flash Point(C)

89 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Dinesh Kumar Rayabarapu et al.
Chemical communications (Cambridge, England), (9)(9), 942-943 (2002-07-19)
Carbocylization of o-halophenyl ketones with propiolates in the presence of Ni(dppe)Br2 and Zn powder in acetonitrile at 80 degrees C afforded the corresponding 2,3-disubstituted indenols.
Miguel del Nogal Sánchez et al.
Analytical and bioanalytical chemistry, 397(6), 2579-2591 (2010-05-25)
In the present work, a strategy for the qualitative and quantitative analysis of 24 volatile compounds listed as suspected allergens in cosmetics by the European Union is reported. The list includes benzyl alcohol, limonene, linalool, methyl 2-octynoate, beta-citronellol, geraniol, citral
Allergic contact dermatitis from methyl heptine and methyl octine carbonates.
J S English et al.
Contact dermatitis, 18(3), 174-175 (1988-03-01)
I Takanami et al.
Gan no rinsho. Japan journal of cancer clinics, 30(4), 340-343 (1984-04-01)
Results of methyl heptine carbonate skin tests were compared with DNCB skin test results in 155 patients with chest diseases. Reactions to methyl heptine carbonate and DNCB were similar in 142 of 155 patients (92%). Forty-two lung cancer patients and
Jurij J Hostynek et al.
Cutaneous and ocular toxicology, 25(4), 259-271 (2006-12-13)
The fragrance material methyl heptine carbonate has been cited as a moderately frequent cause of cosmetics-related allergic contact dermatitis. A review of the literature shows that when the underlying clinical data are analyzed, there is only one published case where
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