Select Option
Home
A to Z
Search
Terms & Conditions
Support Information
Purchasing & Other Services
Video User Guides

gibberellins
** giberelline ** gibberellins - GA4/GA7 ** gibberellic acid 4 plus 7 ** GA4+7 ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home
Further data may be found in the BPDB

GENERAL INFORMATION
for gibberellins

Description: Plant hormones that regulate growth and influence various developmental processes including stem elongation, germination, dormancy and flowering

Introduction: circa 1926

EC Regulation 1107/2009 (repealing 91/414):
Status Approved
Dossier rapporteur/co-rapporteur Hungary
Date inclusion expires 31/08/2019

Approved for use () or known to be used () in the following European countries:

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

General status:
Pesticide type Plant growth regulator
Substance group Diterpenoid acids - mixture of GA4 and GA7
Substance origin Natural
Mode of action Regulates protein synthesis and stimulates cell elongation.
CAS RN 468-44-0
Alternative/old CAS RN 510-75-8 / mixture 8030-53-3
EC number -
CIPAC number 904
US EPA chemical code 043801
Chiral molecule Chiral or specific isomer of chiral molecule
Chemical formula C19H24O5 / C19H22O5
SMILES -
International Chemical Identifier (InChI) -
Structure diagram/image available? Yes
Molecular mass (g mol-1) 331.4 (mean)
PIN (Preferred Identification Name) -
IUPAC name (3S,3aR,4S,4aR,7R,9aR,9bR,12S)-12-hydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-3,9b-propanoazuleno[1,2-b]furan-4-carboxylic acid + (3S,3aR,4S,4aR,7R,9aR,9bR,12S)-12-hydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propenoazuleno[1,2-b]furan-4-carboxylic acid
CAS name (1α,2β,4αβ,4bβ,10β)-2,4a-dihydroxy-1-methyl-8-methylenegibbane-1,10-dicarboxylic acid 1,4a-lactone + (1α,2β,4αβ,4bβ,10β)-2,4a-dihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic acid 1,4a-lactone
Other status information -
Herbicide Resistance Classification (HRAC) Not known
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Physical state White crystalline solid
Related substances & organisms

Formulations:
Property Value
Example manufacturers of products using this active
  • Fine Agrochemicals
  • Globachem NV
  • Valent Biosciences Ltd.
  • Interfam
Example products using this active
  • Gibb Plus
  • Novagib
  • Regulex 10 SG
  • Gistar
  • Berelex
  • Gibb3
UK LERAP status None (may vary with mixtures)
Formulation and application details Available in a variety of formulations including tablets and soluble granules.


ENVIRONMENTAL FATE

for gibberellins

Property Value Source/Quality Score/Other Information Interpretation
Solubility - In water at 20oC (mg l-1) 40000 A5 High
Solubility - In organic solvents at 20oC (mg l-1) 0.5 A5 - n-Heptane -
78.9 A5 - Xylene -
250000 A5 - Methanol -
250000 A5 - Acetone -
Melting point (oC) 205 A5 -
Boiling point (oC) Decomposes before boiling A5 -
Degradation point (oC) >210 A5 -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 1.40 X 1000 Calculated -
Log P 0.146 A5 Low
Bulk density (g ml-1)/Specific gravity - - -
Dissociation constant (pKa) at 25oC 4.30 A5 -
Note:
Vapour pressure at 25oC (mPa) 7.68 X 10-0.33 A5 Volatile
Henry's law constant at 25oC (Pa m3 mol-1) 2.0 X 10-05 A5 Non-volatile
Henry's law constant at 20oC (dimensionless) 2.61 X 10-08 Calculated Non-volatile
GUS leaching potential index - - -
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Value - - -
Note -
Potential for particle bound transport index - - -
Maximum UV-vis absorption L mol-1 cm-1 Absorbs below 250nm, no maxima above 210nm A5 -
Surface tension (mN m-1) 64.0 A5 -

Degradation:
Property Value Source/Quality Score/Other Information Interpretation
Soil degradation (days) (aerobic) DT50 (typical) - - -
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
Note: -
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value - - -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

Soil adsorption and mobility:
Property Value Source/Quality Score/Other Information Interpretation
Linear Kd - - -
Koc -
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for gibberellins

Property Value Source/Quality Score/Other Information Interpretation
Bio-concentration factor BCF Low risk A4 Based on LogP < 3 High potential
CT50 (days) - -
Bioaccumulation potential - Calculated Low
Mammals - Acute oral LD50 (mg kg-1) > 5000 A5 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 2250 A5 Colinus virginianus Low
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 100 A5 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 100 A5 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) - - -
Algae - Acute 72 hour EC50, growth (mg l-1) > 100 A5 Pseudokirchneriella subcapitata Low
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees - Acute 48 hour LD50 (μg bee-1) > 25 E3 Contact Moderate
Earthworms - Acute 14 day LC50 (mg kg-1) > 1250 A5 Eisenia foetida Low
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 >40.0 Mortality
A5 Aphidius rhopalosiphi
Harmful at 1 kg ha-1
Moderately harmful at 0.1 kg ha-1
Harmless at 0.01 kg ha-1
% Effect - - -
Other arthropod (2) LR50 g ha-1 >40.0 Mortality
A5 Typhlodromus pyri
Harmful at 1 kg ha-1
Moderately harmful at 0.1 kg ha-1
Harmless at 0.01 kg ha-1
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for gibberellins

General:
Property Value Source/Quality Score/Other Information Interpretation
Mammals - Acute oral LD50 (mg kg-1) > 5000 A5 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 A5 Rat -
Mammals - Inhalation LC50 (mg l-1) > 2.98 A5 Rat, 4 hr (nose only) -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.3 A5 Rat, SF=1000 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) None allocated A5 -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) 0.18 A5 Rat, SF=54, corrected for low absorption -
Dermal penetration studies (%) 18 A3 product -
Dangerous Substances Directive 76/464 - - -
Exposure Limits - - -
Exposure Routes Public Low risk to bystanders
Occupational Low risk to operators and other farm workers
Examples of European MRLs (mg kg-1) Value -
Note For the EU pesticides database click here
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Acetyl cholinesterase inhibitor Neurotoxicant Respiratory tract irritant Skin irritant Eye irritant

General human health issues No information available

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data

Handling issues:
Property Value Source/Quality Score/Other Information Interpretation
General Avoid generation of dust
Not explosive or oxidising
CLP classification 2013 -
EC Risk Classification None
EC Safety Classification S2, S13, S20/21, S35, S36/37, S49
WHO Classification III - Slightly hazardous
US EPA Classification (formulation) - - -
UN Number -
Waste disposal & packaging -


TRANSLATIONS

for gibberellins

Language Name
English gibberellins
French -
German -
Danish -
Italian -
Spanish -
Greek -
Slovenian -
Polish -
Swedish -
Hungarian -
Dutch -

Record last updated: Monday 04 August 2014
Contact: aeru@herts.ac.uk