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2-Octynoic acid

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Name

2-Octynoic acid

EINECS 227-121-3
CAS No. 5663-96-7 Density 1.011 g/cm3
PSA 37.30000 LogP 1.65470
Solubility N/A Melting Point 2-5 °C(lit.)
Formula C8H12O2 Boiling Point 256.3 °C at 760 mmHg
Molecular Weight 140.182 Flash Point 101.1 °C
Transport Information UN 3265 Appearance clear colorless to light yellow liquid
Safety 26-27-36/37/39-45 Risk Codes 20/21/22-34
Molecular Structure Molecular Structure of 5663-96-7 (2-Octynoic acid) Hazard Symbols CorrosiveC
Synonyms

2-Octyn-1-oicacid;NSC 75855;Pentylpropiolic acid;

Article Data 32

2-Octynoic acid Specification

This chemical is called 2-Octynoic acid, and its systematic name is Oct-2-ynoic acid. With the molecular formula of C8H12O2, its product categories are C8; Carbonyl Compounds; Carboxylic Acids. The CAS registry number of this chemical is 5663-96-7. In addition, this chemical should be sealed in the cool and dry place.

Other characteristics of the 2-Octynoic acid can be summarised as followings: (1)ACD/LogP: 2.98; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.01; (4)ACD/LogD (pH 7.4): -0.74; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1.07; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 26.3 Å2; (13)Index of Refraction: 1.47; (14)Molar Refractivity: 38.68 cm3; (15)Molar Volume: 138.5 cm3; (16)Polarizability: 15.33×10-24cm3; (17)Surface Tension: 40.9 dyne/cm; (18)Density: 1.011 g/cm3; (19)Flash Point: 101.1 °C; (20)Enthalpy of Vaporization: 54.37 kJ/mol; (21)Boiling Point: 256.3 °C at 760 mmHg; (22)Vapour Pressure: 0.00475 mmHg at 25°C.

Production method of this chemical: The 2-Octynoic acid could be obtained by the reactant of oct-2-ynoic acid allyl ester. This reaction needs the solvent of morpholine, -1,3-bis(diphenylphosphino)propane. The yield is 100 %.

The 2-Octynoic acid could be obtained by the reactant of oct-2-ynoic acid allyl ester

Uses of this chemical: The 2-Octynoic acid could react with diazomethane, and obtain the oct-2-ynoic acid methyl ester. This reaction needs the solvent of diethyl ether. The yield is 95 %.

The 2-Octynoic acid could react with diazomethane, and obtain the oct-2-ynoic acid methyl ester

When you are using this chemical, please be cautious about it as the following: This chemical is harmful to eyes, skin and if swallowed. It causes burns. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
1.SMILES: O=C(C#CCCCCC)O
2.InChI: InChI=1/C8H12O2/c1-2-3-4-5-6-7-8(9)10/h2-5H2,1H3,(H,9,10)
3.InChIKey: BQDKCWCMDBMLEH-UHFFFAOYAX

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intravenous 18mg/kg (18mg/kg)   U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#05747,

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