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40980

Sigma-Aldrich

3,7-Dimethyl-1-octene

≥97.0% (GC)

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About This Item

Linear Formula:
(CH3)2CHCH2CH2CH2CH(CH3)CH=CH2
CAS Number:
Molecular Weight:
140.27
Beilstein:
1719870
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥97.0% (GC)

refractive index

n20/D 1.417

bp

154-156 °C (lit.)

density

0.733 g/mL at 20 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(C)CCCC(C)C=C

InChI

1S/C10H20/c1-5-10(4)8-6-7-9(2)3/h5,9-10H,1,6-8H2,2-4H3

InChI key

KSXTZYRIJKDCEA-UHFFFAOYSA-N

Related Categories

General description

(R)-3,7-dimethyl-1-octene is an optically active alkyl-α-olefin. Its copolymerization with styrene, 1-vinylnaphthalene or 2-methylstyrene by Ziegler-Natta catalysts has been reported. Preparation of copolymers of racemic and optically active 3,7-dimethyl-1-octene with ethylene in the presence of Ziegler-Natta isospecific catalysts have been studied. Polymerization of (R,S)-3,7-dimethyl-1-octene in the presence of heterogeneous or homogeneous isotactic specific catalysts involves highly stereospecific insertion of (R,S)-3,7-dimethyl-1-octene into the metal-CH3 bond.

Pictograms

Flame

Signal Word

Warning

Hazard Statements

Hazard Classifications

Flam. Liq. 3

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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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13C-enriched end groups of poly (3, 7-dimethyl-1-octene) prepared in the presence of isotactic specific catalysts.
Longo P, et al.
Macromolecular Rapid Communications, 18(6), 491-495 (1997)
Stereoselective copolymerization of racemic a-olefins with ethylene by isospecific Ziegler-Natta catalyst.
Ciardelli F, et al.
Marine Chemistry, 175(3), 923-933 (1974)
Optically active hydrocarbon polymers with aromatic side chains, 7. Synthesis and properties of copolymers of vinyl aromatic monomers with chiral α-olefins.
Carlini C and Chiellini E.
Marine Chemistry, 176(3), 519-535 (1975)

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