Description

cis-beta-Methylstyrene (CAS: 766-90-5) is a high-purity organic compound with the molecular formula C₉H₁₀. This specialized chemical is widely utilized in research and industrial applications due to its unique structural properties as a cis-configured alkene derivative. It is stabilized with TBC (tert-butylcatechol) to prevent polymerization during storage and handling. The compound is available in various packaging options, ensuring compatibility with laboratory and bulk-scale requirements. Its high reactivity makes it valuable in organic synthesis, polymer chemistry, and material science research.

Key features include:

• Molecular Weight: 118.18 g/mol
• Boiling Point: ~170-175°C
• Density: ~0.91 g/cm³
• Purity: ≥98% (GC analysis)
• Stabilized with 100-200 ppm TBC

This product is packaged under inert gas to maintain stability and is suitable for use in controlled environments. Please consult the SDS for detailed safety information.

Properties

• CAS Number: 766-90-5
• Complexity: 86.2
• IUPAC Name: [(Z)-prop-1-enyl]benzene
• InChI: InChI=1S/C9H10/c1-2-6-9-7-4-3-5-8-9/h2-8H,1H3/b6-2-
• InChI Key: QROGIFZRVHSFLM-KXFIGUGUSA-N
• Exact Mass: 118.078250319
• Molecular Formula: C9H10
• Molecular Weight: 118.18
• SMILES: C/C=CC1=CC=CC=C1
• Monoisotopic Mass: 118.078250319
• Synonyms: cis-beta-Methylstyrene, 766-90-5, cis-1-Propenylbenzene, (Z)-1-Phenylpropene, cis-.beta.-Methylstyrene, [(Z)-prop-1-enyl]benzene, Benzene, (1Z)-1-propenyl-, Benzene, 1-propenyl-, (Z)-, beta-Methylstyrene, cis-, 8NJI11T1B3, (1Z)-1-Propenylbenzene, NSC-73957, DTXSID50880652, .BETA.-METHYLSTYRENE, CIS-, NSC 73957, BENZENE, (1Z)-1-PROPEN-1-YL-, ((Z)-prop-1-enyl)benzene, DTXCID401022019, 672-686-5, cis-Propenylbenzene, cis-1-Phenyl-1-propene, cis-1-Phenylpropene, (Z)-1-Propenylbenzene, 1-Phenyl-1-propene, cis-, cis-b-Methylstyrene (Stablized with TBC), UNII-8NJI11T1B3, Benzene, propenyl-, (Z)-, (Z)-phenylpropene, MFCD00065137, cis-beta-methyl styrene, (1Z)-1-Propenylbenzene #, ghl.PD_Mitscher_leg0.350, (Z)-prop-1-en-1-ylbenzene, SCHEMBL151710, SCHEMBL335864, SCHEMBL608767, SCHEMBL611109, SCHEMBL5966228, Benzene, propen-1-yl-, (Z)-, NSC73957, AKOS006230570, cis-?-Methylstyrene (stabilized with TBC), cis-|A-Methylstyrene (stabilized with TBC), CS-0455664, M1174, NS00096259, D91456, 10.14272/QROGIFZRVHSFLM-KXFIGUGUSA-N.1, doi:10.14272/QROGIFZRVHSFLM-KXFIGUGUSA-N.1, Q27270791

cis-beta-Methylstyrene serves as a key intermediate in organic synthesis, particularly in the production of specialty polymers and fine chemicals. Researchers employ it in stereospecific reactions where the cis-configuration is critical. The compound finds application in material science for developing novel copolymers with tailored properties. Its reactivity makes it valuable in catalytic studies and asymmetric synthesis. Proper handling under inert atmosphere is recommended due to its potential for polymerization.

Safety and Hazards

GHS Hazard Statements

• H226 (66.7%): Flammable liquid and vapor [Warning Flammable liquids]
• H315 (66.7%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (66.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (33.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 3 (66.7%)
• Skin Irrit. 2 (66.7%)
• Eye Irrit. 2 (66.7%)
• STOT SE 3 (33.3%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.