(1S)-(-)-alpha-Pinene
Synonym(s):(-)-alpha-Pinene;(1S)-2,6,6-Trimethylbicyclo[3.1.1]hept-2-ene;(-)-α-Pinene;(1S)-(-)-α-Pinene;(1S)-(?)-α-Pinene
- CAS NO.：7785-26-4
- Empirical Formula: C10H16
- Molecular Weight: 136.23
- MDL number: MFCD00064145
- EINECS: 232-077-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-23 20:02:38
What is (1S)-(-)-alpha-Pinene?
Chemical properties
(1S)-(-)-alpha-Pinene is clear colourless liquid
The Uses of (1S)-(-)-alpha-Pinene
(1S)-(-)-alpha-Pinene is used in the preparation of hydroxy ketones such as hydroxycarvones.
The Uses of (1S)-(-)-alpha-Pinene
(1S)-(-)-α-Pinene is used in the preparation of hydroxy ketones such as hydroxycarvones.
What are the applications of Application
(?)-α-Pinene is a component of pine resin and a useful chiral synthetic intermediate
Definition
ChEBI: (-)-alpha-pinene is an alpha-pinene. It is an enantiomer of a (+)-alpha-pinene.
General Description
α-Pinene is a monoterpene used in industries like fragrance, pharmaceuticals, flavor, and cosmetics. It is a major component of pine oil and turpentine oil. Isomerization of α-pinene yields industrially important compounds like camphene, limonene, and p-cymene.
Purification Methods
Purify as for 1R,5S--Pinene above. [Beilstein 5 III 366, 5 IV 455.]
Properties of (1S)-(-)-alpha-Pinene
| Melting point: | -64 °C(lit.) |
| Boiling point: | 156-158 °C(lit.) |
| alpha | -41.5 º (c=neat) |
| Density | 0.874 g/mL at 25 °C |
| vapor density | 4.7 (vs air) |
| vapor pressure | ~3 mm Hg ( 20 °C) |
| refractive index | n |
| FEMA | 2902 | ALPHA-PINENE |
| Flash point: | 90 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | Chloroform (Sparingly), Methanol (Slightly) |
| form | Liquid |
| color | Clear colorless |
| Odor | at 10.00 % in dipropylene glycol. sharp warm resinous fresh pine |
| explosive limit | 0.8%(V) |
| optical activity | [α]22/D 42°, neat |
| Water Solubility | INSOLUBLE |
| Merck | 14,7445 |
| JECFA Number | 1329 |
| BRN | 1903790 |
| CAS DataBase Reference | 7785-26-4(CAS DataBase Reference) |
| NIST Chemistry Reference | (1s)-2,6,6-Trimethylbicyclo[3.1.1]hept-2-ene(7785-26-4) |
| EPA Substance Registry System | 2-Pinene, (1S,5S)-(-)- (7785-26-4) |
Safety information for (1S)-(-)-alpha-Pinene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H226:Flammable liquids H302:Acute toxicity,oral H304:Aspiration hazard H315:Skin corrosion/irritation H317:Sensitisation, Skin H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P331:Do NOT induce vomiting. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for (1S)-(-)-alpha-Pinene
| InChIKey | GRWFGVWFFZKLTI-UHFFFAOYSA-N |
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