alpha-Terpinene
- CAS No.
- 99-86-5
- Chemical Name:
- alpha-Terpinene
- Synonyms
- 1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-;Terpilene;1-methyl-4-(1-methylethyl)-1,3-cyclohexadiene;A-TERPINENE;TERPINENE ALPHA;FEMA 3558;ALPHA-TERPINEN;α-Terpinene ,90%;1,3-p-menthadiene;P-MENTHA-1,3-DIENE
- CBNumber:
- CB5266720
- Molecular Formula:
- C10H16
- Molecular Weight:
- 136.23
- MDL Number:
- MFCD00001534
- MOL File:
- 99-86-5.mol
- MSDS File:
- SDS
| Melting point | -59.03°C (estimate) |
|---|---|
| Boiling point | 173-175 °C(lit.) |
| Density | 0.837 g/mL at 25 °C(lit.) |
| vapor pressure | 2.22hPa at 25℃ |
| FEMA | 3558 | P-MENTHA-1,3-DIENE |
| refractive index |
n |
| Flash point | 115 °F |
| storage temp. | 2-8°C |
| solubility | 95% ethanol: soluble1ml/2ml, clear, colorless |
| form | Liquid |
| color | Clear colorless to light yellow |
| Specific Gravity | 0.84 |
| Odor | at 10.00 % in dipropylene glycol. woody terpene lemon herbal medicinal citrus |
| Odor Type | woody |
| Water Solubility | Soluble in ether, alcohol, and ethanol (100 mg/ml). Insoluble in water. |
| JECFA Number | 1339 |
| Merck | 14,9170 |
| BRN | 1853379 |
| Dielectric constant | 2.7000000000000002 |
| Stability | Light Sensitive |
| LogP | 5.3 at 35℃ |
| Substances Added to Food (formerly EAFUS) | ALPHA-TERPINENE |
| FDA 21 CFR | 172.515 |
| EWG's Food Scores | 1-2 |
| FDA UNII | I24X278AP1 |
| EPA Substance Registry System | 1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)- (99-86-5) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H226-H302-H317-H319-H411 | |||||||||
| Precautionary statements | P210-P273-P280-P301+P312-P303+P361+P353-P305+P351+P338 | |||||||||
| Hazard Codes | Xn,N,Xi | |||||||||
| Risk Statements | 10-22-36/37/38-51/53 | |||||||||
| Safety Statements | 26-36/37-61-62-36 | |||||||||
| RIDADR | UN 2319 3/PG 3 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | OS8060000 | |||||||||
| F | 10-23 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3.2 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29021990 | |||||||||
| Toxicity | The acute oral LD50 value in rats was reported as 1.68 g/kg (1*46-1 -90 g/kg) (Moreno, 1973). Because of its action as a liver poison and methaemoglobin former, α-terpinene should be used very sparingly, or not at all, in foods (B?r & Griepentrog, 1967). | |||||||||
| NFPA 704 |
|
alpha-Terpinene price More Price(30)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W355801 | α-Terpinene ≥89%, FCC, FG | 99-86-5 | 1kg | $78.7 | 2024-03-01 | Buy |
| Sigma-Aldrich | W355801 | α-Terpinene ≥89%, FCC, FG | 99-86-5 | 8kg | $463 | 2024-03-01 | Buy |
| Sigma-Aldrich | CRM40443 | alpha-Terpinene solution certified reference material, 2000?μg/mL in methanol, ampule of 1?mL | 99-86-5 | 1mL | $105 | 2024-03-01 | Buy |
| Sigma-Aldrich | 86473 | α-Terpinene ≥95.0% (GC) | 99-86-5 | 1ml | $209 | 2024-03-01 | Buy |
| Sigma-Aldrich | 223182 | α-Terpinene 85% | 99-86-5 | 100ml | $51.5 | 2024-03-01 | Buy |
alpha-Terpinene Chemical Properties,Uses,Production
Chemical Properties
alpha-Terpinene is a clear colorless to light yellow liquid with a woody, terpene, lemon odor with a lemony flavor, becoming bitter at high levels. It dissolves in ethanol and most non-volatile oils but does not dissolve in water. It is found naturally in oils such as cardamom, sweet oregano, and coriander seed oil.
Occurrence
Reported found in roots, stems, leaves and flowers of Echinacea species. Also reported found in in tea tree oil, papaya fruit, grapefruit, lemon, lime, mandarin, oranage, spearmint, citrus peel oils, cranberry, currants, guava, grapes, raspberry, peach, carrot, celery, cinnamon, clove, cumin seed, ginger, peppermint and corn mint oils, other mentha oils, nutmeg, pepper, mace, parsley, thymus, rum, tea, filberts, pecans, soybeans, passion fruit, beans, sweet marjoram, starfruit, mango, cardamom, coriander seed, origanum, prickly pear, litchi, calamus, dill herb, lovage seed and leaf, juniper berries, laurel, fennel, rosemary, buchu oil, tur meric, sage, nectarines and many other sources.
Uses
α-Terpinene is suitable for use in a study to evaluate the antimycotic properties of Melaleuca alternifolia essential oil (tea tree oil, TTO). 1 It is suitable for use to investigate the in vitro antibacterial activity of the essential oils extracted from the fruits of Coriandrum sativum L. and Foeniculum vulgare Miller var. vulgare (Miller).
Uses
It can be used as a chemical fragrance essential oil and spices. It is used as a flavoring and fragrance chemical used in the personal care and cosmetic and food industries. Also used in the pharmaceutical, electronics, food processing, semi-conductor manufacturing industries.
Definition
ChEBI: Alpha-terpinene is one of three isomeric monoterpenes differing in the positions of their two double bonds (beta- and gamma-terpinene being the others). In alpha-terpinene the double bonds are at the 1- and 3-positions of the p-menthane skeleton. It has a role as a volatile oil component and a plant metabolite. It is a monoterpene and a cyclohexadiene.
Preparation
May be obtained by isolation from the terpene fraction of sweet orange oil or orange terpenes (8 to 10% of the total monoterpenes); by isolation from fractions of American turpentine oil; from 1-methyl-4-isopropylcyclohexadien-1,3-one-2; also from terpinene dihydrochloride with aniline.
Aroma threshold values
Aroma characteristics at 10%: citrusy, woody, terpy with camphoraceous and thymol notes; it has spicy and juicy citrus nuances.
Taste threshold values
Taste characteristics at 5 to 100 ppm: terpy, woody, piney, citrus lemon and lime with spice and mint nuances.
General Description
α-Terpinene, a volatile essential oil derived from Melaleuca alternifolia, shows antimicrobial properties against various human pathogens.
Flammability and Explosibility
Flammable
Biochem/physiol Actions
Odor at 10%
Pharmacology
Combinations of terpenes, such as terpinene, with nonionic surfactants and stabilizers have been patented for use as gallstone solvents. Artificial or human cholesterol calculi placed in terpinene with or without human bile at 37°C were dissolved within 1-2 hr (Hisamitsu Pharmaceutical Co., Inc., 1973).
Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
alpha-Terpinene Preparation Products And Raw materials
Raw materials
1of3
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 5993 | 58 |
| Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 | daisy@crovellbio.com | China | 5964 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 7786 | 58 |
| Ouhuang Engineering Materials (Hubei) Co., Ltd | +8617702722807 | admin@hbouhuang.com | China | 1696 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21691 | 55 |
| Shanghai Zheyan Biotech Co., Ltd. | 18017610038 | zheyansh@163.com | CHINA | 3620 | 58 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | alice@crovellbio.com | China | 8823 | 58 |
View Lastest Price from alpha-Terpinene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-24 | alpha-Terpinene
99-86-5
|
US $10.00 / kg | 1kg | 99.6% | 100000 | Ouhuang Engineering Materials (Hubei) Co., Ltd | |
 |
2023-12-26 | alpha-Terpinene
99-86-5
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2023-09-15 | ALPHA-TERPINENE
99-86-5
|
US $10.00-1.00 / kg | 1kg | 0.99 | 20 tons | Hebei Yanxi Chemical Co., Ltd. |
-
- alpha-Terpinene
99-86-5
- US $10.00 / kg
- 99.6%
- Ouhuang Engineering Materials (Hubei) Co., Ltd
-
- alpha-Terpinene
99-86-5
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
-
- ALPHA-TERPINENE
99-86-5
- US $10.00-1.00 / kg
- 0.99
- Hebei Yanxi Chemical Co., Ltd.