Gibberellinsäure

Gibberellic acid Struktur
77-06-5
CAS-Nr.
77-06-5
Bezeichnung:
Gibberellinsäure
Englisch Name:
Gibberellic acid
Synonyma:
GA3;GIBBERELLIN;GIBBERELIC ACID;Gibberellic;Gibberellins;GIBBERELLIN A3;PRO-GIBB;GIBBERLIC ACID;RELEASE;GIBERELLIN
CBNumber:
CB0734590
Summenformel:
C19H22O6
Molgewicht:
346.38
MOL-Datei:
77-06-5.mol

Gibberellinsäure Eigenschaften

Schmelzpunkt:
227 °C
Siedepunkt:
401.12°C (rough estimate)
alpha 
82.5 º (c=10, ethanol)
Dichte
1.34 g/cm3 (20℃)
Brechungsindex
81 ° (C=2, MeOH)
storage temp. 
0-6°C
Löslichkeit
5g/l
Aggregatzustand
Powder
pka
4.0(at 25℃)
Farbe
White to pale yellow
Optische Aktivität
[α]20/D +80±3°, c = 1% in methanol
Wasserlöslichkeit
5 g/L (20 º C)
Merck 
14,4419
BRN 
54346
Stabilität:
Stable. Combustible. Incompatible with acids, strong oxidizing agents.
InChIKey
IXORZMNAPKEEDV-OBDJNFEBSA-N
LogP
0.240
CAS Datenbank
77-06-5
NIST chemische Informationen
Gibberellic acid(77-06-5)
EPA chemische Informationen
Gibberellic acid (77-06-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi
R-Sätze: 36
S-Sätze: 26-36-24/25
RIDADR  None [88] Not regulated.
WGK Germany  3
RTECS-Nr. LY8990000
10
TSCA  Yes
HS Code  29322980
Giftige Stoffe Daten 77-06-5(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: 6300 mg/kg LD50 dermal Rabbit > 2000 mg/kg
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P337+P313 Bei anhaltender Augenreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

Gibberellinsäure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R36:Reizt die Augen.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Beschreibung

Gibberellic acid (GA) is a tetracyclic di-terpenoid compound. It is one of the major hormones that can be synthesized in plants and fungi. It has various kinds of physiological effects including stimulating seed germination, inducing mitotic division of the leaves, triggering transitions from meristem to shoot growth, vegetative to flowering, determining sex expression and grain development through crosstalk with many environmental signals such as light, temperature and water. In lab and greenhouse, it can be used to trigger germination of seeds which has previously remained dormant. It can also used to induce the production of larger amount and bigger grapes, boosting the grape industry. In industry, GA can be produced from Solid-state Fermentation (SSF) which can have relatively high yield.

Chemische Eigenschaften

white powder

Verwenden

Gibberellic Acid is a a pentacyclic diterpene acid. Gibberellic Acid is a hormone that is found in plants which promotes the growth and elongation of cells. Gibberellic acid acts as a plant growth reg ulator on account of its physiological and morphological effects in extremely low concentrations. Generally Gibberellic acid affects only the plant parts above the soil surface.

Definition

ChEBI: A C19-gibberellin that is a pentacyclic diterpenoid responsible for promoting growth and elongation of cells in plants.

Biosynthese

The presence of GA in actively growing tissues, i.e., shoot apices, young leaves, and flowers. Gibberellins (GAs; Gibberellic acids) being synthesized via the terpenoid pathway, require 3 enzymes viz., terpene synthase (TPSs), cytochrome P450 monooxygenase (P450s) and 2-oxoglutarate dependent dehydrogenase (2 ODDs), for the biosynthesis of bioactive GA from geranylgeranyl diphosphate in plants. Two terpene synthases, ent-copalyl diphosphate synthase (CPS) and ent-kaurene synthase (KS), located in plastids, are involved in the conversion of GGDP to tetracyclic hydrocarbon intermediate ent-kaurene. ent-Kaurene is then converted to GA12 by 2 P450s. First, ent-Kaurene oxidase (KO), present in the plastid's outer membrane, catalyzes the sequential oxidation of C-19 to produce ent-kaurenoic acid. Second, the kaurenoic acid oxidase (KAO) in the endoplasmic reticulum is converted to GA12. Bioactive GA4 is converted from GA12 through oxidations on C-20 and C-3 by GA 20-oxidase (GA20ox) and GA 3-oxidase (GA3ox)[3].
Gibberellic acid

Allgemeine Beschreibung

White powder.

Air & Water Reaktionen

Slightly water soluble .

Reaktivität anzeigen

Gibberellic acid is readily degraded by acids. .

Brandgefahr

Flash point data for Gibberellic acid are not available. Gibberellic acid is probably combustible.

Landwirtschaftliche Anwendung

Plant growth hormone, Plant regulator: Gibberellic acids (Gibberellins) are naturally occurring plant hormones that are used as plant growth regulators to stimulate both cell division and elongation that affects leaves and stems. Applications of this hormone also hastens plant maturation and seed germination. Delayed harvesting of fruits, allowing them to grow larger. Gibberellic acids are applied to growing field crops, small fruits, grapes, vines and tree fruit, and ornamentals, shrubs and vines.

Handelsname

ACTIVOL®; BERELEX®; BRELLIN®; BOLL-SET®; CEKUGIB®; CROP BOOSTER®; CYTOPLEX HMS®, DYNOGEN®; FALGRO®; FLORALTONE® (with 2,3,5-triiodobenzoic acid); FLORGIB®; FOLI-ZYME®; GIBBEX®; GIBBERELLIN A 3 ®; GIBBERELLIN X®; GIBBREL®; GIBGRO®; GIB-SOL®; GIB-TABS®; GIBRESCOL®; GROCEL®; KALGIBB®; MAXON®; N-LARGE®; NOVAGIB®; PGR-IV®; PRO-GIBB®; REGULEX®; RELEASE®; RELAX®; RYZUP®; STIMULATE®; VIGOR®

Sicherheitsprofil

Mildly toxic by ingestion. Questionable carcinogen with experimental tumorigenic data. hlutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

läuterung methode

It crystallises from EtOAc, EtOAc/pet ether, MeOH/pet ether or Me2CO/pet ether. [Cross J Chem Soc 3022 1960, Beilstein 18 III/IV 6533.]

Einzelnachweise

[1]https://en.wikipedia.org/wiki/Gibberellic_acid
[2]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4002599/
[3] Gupta, Ramwant, and S K Chakrabarty. “Gibberellic acid in plant: still a mystery unresolved.” Plant signaling & behavior vol. 8,9 (2013): e25504. doi:10.4161/psb.25504
[4]Celik, Ismail et al. “Evalution of toxicity of abcisic acid and gibberellic acid in rats: 50 days drinking water study.” Journal of enzyme inhibition and medicinal chemistry vol. 22,2 (2007): 219-26. doi:10.1080/14756360600988955

Gibberellinsäure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Gibberellinsäure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 649)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Qingdao Trust Agri Chemical Co.,Ltd
+8613573296305
aroma@qdtrustagri.com China 165 58
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29914 58
Wuhan Xinhao Biotechnology Co., Ltd
+86-18120578002 +86-18120578002
xinhao-6@xinhaoshengwu.com China 350 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21700 55
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714
fandachem@gmail.com China 9354 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679 +86-18949832763
info@tnjchem.com China 2989 55
Shanxi Naipu Import and Export Co.,Ltd
+86-13734021967 +8613734021967
kaia@neputrading.com China 1011 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3620 58
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28180 58
Casorganics US Corp
+17326109938
sales@casorganics.com CHINA 174 58

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