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alpha-Pinene

alpha-Pinene
alpha-Pinene structure
CAS No.
80-56-8
Chemical Name:
alpha-Pinene
Synonyms
c 500;PC500;PINENE;PERMOUNT;AciteneA;2-Pinene;pin-2-ene;Australene;Pina-2-ene;α-pin-2-ene
CBNumber:
CB8209087
Molecular Formula:
C10H16
Formula Weight:
136.23
MOL File:
80-56-8.mol

alpha-Pinene Properties

Melting point:
-55°C
Boiling point:
155-156 °C(lit.)
Density 
0.858 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.465(lit.)
FEMA 
2902 | ALPHA-PINENE
Flash point:
90 °F
storage temp. 
2-8°C
form 
Liquid
color 
Clear colorless
Odor Threshold
0.018ppm
Water Solubility 
insoluble
Merck 
13,7527
JECFA Number
1329
Stability:
Stable. Flammable. Incompatible with strong oxidizing agents.
CAS DataBase Reference
80-56-8(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS)
ALPHA-PINENE
EWG's Food Scores
1
FDA UNII
996299PUKB
NIST Chemistry Reference
«alpha»-Pinene(80-56-8)
EPA Substance Registry System
.alpha.-Pinene (80-56-8)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H226-H304-H315-H317-H411
Precautionary statements  P210-P280-P301+P310-P331-P370+P378
Hazard Codes  Xi,N,Xn,F
Risk Statements  10-36/37/38-43-50-65-51/53-38-36/38-20
Safety Statements  26-36/37-61-37/39-29-16-36/37/39-7/9-62
RIDADR  UN 2368 3/PG 3
WGK Germany  1
RTECS  DT7000000
Autoignition Temperature 491 °F
HazardClass  3.2
PackingGroup  III
HS Code  29021990
NFPA 704
3
1 0

alpha-Pinene price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich CRM40339 alpha-Pinene solution certified reference material, 2000?μg/mL in methanol, ampule of 1?mL 80-56-8 1 mL $94.4 2021-03-22 Buy
Sigma-Aldrich 00040590 α-Pinene primary reference standard 80-56-8 100mg $226 2020-08-18 Buy
Sigma-Aldrich 147524 α-Pinene 98% 80-56-8 1l $290 2020-08-18 Buy
Cayman Chemical 21576 α-Pinene ≥95% 80-56-8 10mg $35 2021-03-22 Buy
Cayman Chemical 21576 α-Pinene ≥95% 80-56-8 50mg $88 2021-03-22 Buy

alpha-Pinene Chemical Properties,Uses,Production

Description

Alpha-pinene is the major constituent of turpentine (about 80%). It exists as a levogyre form in European turpentines, and as a dextrogyre form in turpentines found in North America. Sensitization mainly occurs in painters, polishers and varnishers, and in those in the perfume and ceramics industry.

Chemical Properties

α-Pinene is the most widespread pinene isomer. (+)-α-Pinene, (1R,5R)-2,6,6-trimethylbicyclo[3.3.1]hept-2-ene, occurs, for example, in oil from Pinus palustris Mill., at a concentration up to 65%; oil from Pinus pinaster Soland and American oil from Pinus caribaea contain 70% and 70–80%, respectively, of the laevorotatory isomer, (?)-α-Pinene, (1S,5S)-2,6,6-trimethylbicyclo[3.3.1]hept-2-ene.
α-Pinene undergoes many reactions, of which the following are used in the fragrance industry: upon hydrogenation, α-pinene is converted to pinane, which has become an important starting material in the industrial processes used in the fragrance and flavor industry. α-Pinene can be isomerized to β-pinene with high selectivity for β-pinene formation. Hydration with simultaneous ring opening yields terpineol and cis-terpin hydrate. Pyrolysis of α-pinene yields a mixture of ocimene and alloocimene.
Pure α-pinene is obtained by distillation of turpentine oils. As a fragrance substance, it is used to improve the odor of industrial products.However, it is farmore important as a starting material in industrial syntheses, for example, terpineols, borneol, and camphor.

Chemical Properties

α-Pinene has a characteristic odor of pine. It is turpentine-like. The oxidized material has a resin-like odor.

Chemical Properties

liquid with a turpentine odour

Occurrence

The structure would account for the presence of four optically active and two optically inactive isomers; although only d-, l-, and dl-α-pinene are known, however; presence of one or more isomers has been reported in more than 400 essential oils; in the largest amounts it has been reported found in Achillea millefolium (d-), Artemisia tridentata (d-), Italian rosemary (l-), wild thyme (l-), French lavender (l-), coriander (d-, dl-), cumin (d, dl-), labdanum (l-), neroli (l-), lemon, Litsea cubeba (d-) and ylang-ylang (d-). It is also reported in over 200 natural products including apple, apricot, many citrus juices and peel oils, bilberry, cranberry, lingonberry, blackberry, currants, guava, raspberry, strawberry, orange, lime, grapefruit, mandarin, tangerine oils and juices, various spices, mint essential oils, carrot, celery, cooked potato, bell pepper, tomato, anise, cinnamon, cassia leaf, clove, cumin, ginger, Mentha oils, nutmeg, mace, pepper, parsley, thyme, Swiss and cheddar cheese, cream, fatty fish, fried chicken, beef fat, hop oil, rum, bourbon whiskey, tea, roasted filberts, pecans, oats, soybean, plum, mushroom, sweet and wild marjoram, starfruit, mango, tamarind, cardamom, coriander, gin, rice, litchi, calamus, dill, lovage, caraway seed, buckwheat, laurel, fennel, kiwifruit, myrtle leaf and berry, rosemary, buchu oil, Bourbon vanilla, Spanish and clary sage, nectarine, crayfish, clam, cape gooseberry, anise hyssop, angelica root oil, Roman and German chamomile oil, eucalyptus oil, bullock’s heart and mastic gum leaf and fruit oil.

Uses

α-Pinene was used as standard in headspace solid-phase microextraction-gas chromatographic analysis of volatile compounds in virgin olive oils 1 . It was used in the synthesis of cesium-doped heteropolyacid having potential application in biodiesel synthesis.

Definition

ChEBI: A pinene that is bicyclo[3.1.1]hept-2-ene substituted by methyl groups at positions 2, 6 and 6 respectively.

Production Methods

α-Pinene occurs naturally in a variety of trees and shrubs, including more than 400 essential oils, and air concentrations near pine forests may reach 500–1200 mg/m3. Total U.S. emission of α-pinene from deciduous and coniferous forests amounts to 6.6 million tons annually. An estimated emission rate of α-pinene from natural sources to the atmosphere is 1.84×10 -10 g/cm3/s.

Preparation

From turpentine, by distillation.

Aroma threshold values

Detection: 2.5 to 62 ppb. Aroma characteristics at 1.0%: terpy citrus and spicy, woody pine and turpentinelike with a slight cooling camphoraceous nutmeglike nuance, a fresh herbal lift and a tropical fruit top note.

Taste threshold values

Taste characteristics at 10 ppm: intense, woody, piney and terpy with camphoraceous and turpentine notes. It has herbal, spicy and slightly tropical mango nuances.

General Description

A clear colorless liquid with a turpentine odor. Flash point 91°F. Less dense than water and insoluble in water. Vapors are heavier than air. Used as a solvent.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

alpha-Pinene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release gaseous hydrogen.

Health Hazard

Harmful if swallowed, inhaled or absorbed through skin. High concentrations are extremely destructive to mucous membrane and upper respiratory tract, eyes and skin. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.

Fire Hazard

Special Hazards of Combustion Products: Vapor may travel considerable distance to source of ignition and flashback. Container explosion may occur during fire conditions. Forms explosive mixtures in air.

Contact allergens

Alpha-pinene is the major constituent of turpentine (about 80%). It exists in levogyre form in European turpentine and in dextrogyre form in turpentine found in North-Americans. Sensitization occurs mainly in painters, polishers, and varnishers, and in those in the perfume and in the ceramics industry.

Safety Profile

A deadly poison by inhalation. Moderately toxic by ingestion. An eye, mucous membrane, and severe human skin irritant. Flammable liquid. A dangerous fire hazard when exposed to heat, flame, or oxidizing materials. To fight fire, use foam, Co2, dry chemical. Explodes on contact with nitrosyl perchlorate.

alpha-Pinene Preparation Products And Raw materials

Raw materials

Preparation Products


alpha-Pinene Suppliers

Global( 201)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
Anhui Royal Chemical Co., Ltd.
+86-025-86655873
marketing@royal-chem.com CHINA 536 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29959 58
Chengdu GLP biotechnology Co Ltd
13350802083 028-87075086
scglp@glp-china.com CHINA 1824 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5508 58
hdzhl biotechnology co., ltd
86-13032617415
sales@luchibiology.com CHINA 1275 58
NanJing Spring & Autumn Biological Engineering CO., LTD.
0086 13815430202 0086 13815430202
sale02@cqherb.com CHINA 372 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302
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View Lastest Price from alpha-Pinene manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-10-28 α-Pinene 80-56-8
80-56-8
US $45.00 / mg 20mg >98% 1000.00 kgs NanJing Spring & Autumn Biological Engineering CO., LTD.
2021-03-16 alpha-Pinene
80-56-8
US $10.00 / PCS 1KG 99% 100 mt Hebei Guanlang Biotechnology Co., Ltd.
2020-11-16 alpha-Pinene
80-56-8
US $200.00 / KG 1KG 99% 10000kg Longyan Tianhua Biological Technology Co., Ltd

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