alpha-Terpinen

Bezeichnung:alpha-Terpinen

CAS-Nr99-86-5

Englisch Name:alpha-Terpinene

CBNumberCB5266720

SummenformelC10H16

Molgewicht136.23

MOL-Datei99-86-5.mol

Synonyma

p-Mentha-1,3-dien

alpha-Terpinen

alpha-Terpinen physikalisch-chemischer Eigenschaften

Schmelzpunkt	-59.03°C (estimate)
Siedepunkt	173-175 °C(lit.)
Dichte	0.837 g/mL at 25 °C(lit.)
Dampfdruck	2.22hPa at 25℃
FEMA	3558 \| P-MENTHA-1,3-DIENE
Brechungsindex	n20/D 1.478(lit.)
Flammpunkt	115 °F
storage temp.	2-8°C
Löslichkeit	95% ethanol: soluble1ml/2ml, clear, colorless
Aggregatzustand	Liquid
Farbe	Clear colorless to light yellow
Wichte	0.84
Geruch (Odor)	at 10.00 % in dipropylene glycol. woody terpene lemon herbal medicinal citrus
Geruchsart	woody
Wasserlöslichkeit	Soluble in ether, alcohol, and ethanol (100 mg/ml). Insoluble in water.
JECFA Number	1339
Merck	14,9170
BRN	1853379
Dielectric constant	2.7000000000000002
Stabilität	Light Sensitive
LogP	5.3 at 35℃
EPA chemische Informationen	1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)- (99-86-5)

Sicherheit

Kennzeichnung gefährlicher	Xn,N,Xi
R-Sätze:	10-22-36/37/38-51/53
S-Sätze:	26-36/37-61-62-36
RIDADR	UN 2319 3/PG 3
WGK Germany	2
RTECS-Nr.	OS8060000
F	10-23
TSCA	Yes
HazardClass	3.2
PackingGroup	III
HS Code	29021990
Toxizität	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).

Gefahreninformationscode (GHS)

alpha-Terpinene Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
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.
Verwenden
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).
Verwenden
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.
Vorbereitung Methode
alpha-Terpinene can be produced
1) by isolation from the Terpene fraction of sweet Orange oil or "Orange terpenes". The title material may constitute as much as 8 to 10% of the total Monoterpenes.
2) by isolation from fractions of American Turpentine oil.
3) from 1-Methyl-4-iso-propylcyclohexadien-1,3-one-2.
4) from Terpinene dihydrochloride with Aniline.
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.
synthetische
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.
Allgemeine Beschreibung
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%
Pharmakologie
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).
Sicherheitsprofil
Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.

alpha-Terpinene Upstream-Materialien And Downstream Produkte

alpha-Terpinen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

99-86-5, alpha-Terpinene Verwandte Suche:

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