402753

(−)-β-Pinene

≥99%

• Synonym(s): (-)-beta-Pinene, (1S)-(−)-β-Pinene, (1S,5S)-2(10)-Pinene, (1S,5S)-6,6-Dimethyl-2-methylenebicyclo[3.1.1]heptane
• Empirical Formula (Hill Notation): C₁₀H₁₆
• CAS Number: 18172-67-3
• Molecular Weight: 136.23
• Beilstein/REAXYS Number: 2038282
• EC Number: 242-060-2
• MDL number: MFCD00001345
• UNSPSC Code: 12352212
• eCl@ss: 39011007
• PubChem Substance ID: 24865115
• NACRES: NA.22

Properties

• vapor density: 4.7 (vs air)
• vapor pressure: ~2 mmHg ( 20 °C)
• assay: ≥99%
• form: liquid
• optical activity: [α]25/D −22°, neat
• optical purity: ee: 97% (GLC)
• refractive index: n20/D 1.478 (lit.)
• bp: 165-167 °C (lit.)
• mp: −61 °C (lit.)
• density: 0.866 g/mL at 25 °C
• SMILES string: [H][C@]12CCC(=C)[C@]([H])(C1)C2(C)C
• InChI: 1S/C10H16/c1-7-4-5-8-6-9(7)10(8,2)3/h8-9H,1,4-6H2,2-3H3/t8-,9-/m0/s1
• InChI key: WTARULDDTDQWMU-IUCAKERBSA-N

Description

Application

(-)-β-Pinene has been used as a standard for the analysis of terpenoid compounds in plant essential oils by GC analysis. It may be used as a building block to synthesize natural products such as grandisol, robustadial and (+)-nopinone. (-)-β-Pinene undergoes hydroformylation in the presence of platinum/tin catalysts to form trans-10-formylpinane.

Safety Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H226,H304,H315,H317,H410
• pcodes: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 3 - Skin Irrit. 2 - Skin Sens. 1
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 102.2 °F - closed cup
• flash_point_c: 39 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter