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Abscisic acid

Abscisic acid structure

CAS No:
21293-29-8
Formula:
C15H20O4
Chemical Name:
Abscisic acid
Synonyms:
2,4-Pentadienoic acid,5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-,(2Z,4E)-;2,4-Pentadienoic acid,5-(1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-,(Z,E)-(S)-(+)-;2,4-Pentadienoic acid,5-(1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-,[S-(Z,E)]-;(2Z,4E)-5-[(1S)-1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-2,4-pentadienoic acid;cis-trans-(+)-Abscisic acid;Abscisin II;Dormin;Abscisic acid;(+)-Abscisic acid;Abscisic acid,(+)-;2-cis,4-trans-Abscisic acid;(+)-Abscisin II;(+)-cis-Abscisic acid;cis-Abscisic acid;(S)-(+)-Abscisic acid;Dormin (abscission factor);ABA;cis,trans-Abscisic acid;ABK;(+)-(S)-Abscisic acid;(+)-(cis,trans)-Abscisic acid;(S)-(+)-ABA;(+)-ABA;PBI 58;(S)-ABA;NSC 146877;NSC 148832;(Z,E)-Abscisic acid;ProTone;11010-88-1;11027-12-6;11038-32-7;14488-90-5;16669-24-2;18463-18-8;22330-12-7;34612-56-1
Categories:
Natural Products > Terpenes

Description

Abscisic acid ((S)-(+)-Abscisic acid) is a plant hormone which is as a growth inhibitor. Abscisic acid has been shown to regulate many aspects of plant growth and development including embryo maturation, seed dormancy, germination, cell division and elongation, floral induction, and responses to environmental stresses such as drought, salinity, cold, pathogen attack and UV radiation[1].

Abscisic acid Basic Attributes

Molecular Weight：

264.32

Exact Mass：

264.32

EC Number：

244-319-5

DSSTox ID：

DTXSID0036766

HScode：

29189900

Characteristics

PSA：

74.6

XLogP3：

1.70

Appearance：

White Powder

Density：

1.2±0.1 g/cm3

Melting Point：

160 °C

Boiling Point：

458.7±45.0 °C at 760 mmHg

Flash Point：

245.4±25.2 °C

Refractive Index：

1.583

Storage Conditions：

−20°C

Vapor Pressure：

2.41E-10mmHg at 25°C

Specific rotation：

D20 +411.1° (c = 1 in ethanol); D20 +426.5° (c = 1 in 0.005N methanolic H2SO4)

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

safety instructions：

22-24/25

RTECS Number：

RZ2475100

Storage features：

The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 159 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Abscisic acid Use and Manufacturing

Abscisic acid can stimulate the production of ethylene and promote fruit ripening. It inhibits the synthesis of DNA and protein. The physiological functions of abscisic acid are as follows: 1. Inhibit and promote growth. When the concentration of externally applied abscisic acid is high, the growth of stems, hypocotyls, roots, coleoptiles or leaves is inhibited. When the concentration is low, it promotes the rooting of the isolated cucumber cotyledons and the elongation of the hypocotyls, accelerates the reproduction of duckweed, and stimulates the development of parthenocarpy seeds. 2. Maintain dormancy of buds and seeds. Dormancy is related to the balance of gibberellin and abscisic acid in the body. 3. Promote the shedding of fruits and leaves. 4. Promote the closure of stomata. Abscisic acid can close the stomata quickly, is non-toxic to plants, and is a good anti-transpirant. A biological test method for testing the concentration of abscisic acid is to float the epidermis of detached leaves on the surface of various concentrations of abscisic acid solution. Within a certain range, the degree of stomata opening and closing is inversely proportional to the concentration of abscisic acid. 5. Affect flowering. Under long-day conditions, abscisic acid can make the top buds of strawberries and blackberries dormant and promote flowering. 6. Affect sexual differentiation. Gibberellin can make female plants of cannabis form male flowers. This effect can be reversed by abscisic acid, but abscisic acid cannot make male plants form female flowers. The natural isomer of abscisic acid. A plant growth regulator that has a high affinity binding site for abscisic acid on the plasma membrane of broad bean guard cells. And a variety of physiological mechanisms such as seed dormancy, leaf shedding, stomatal movement and plant stress response. Through complex interactions with a variety of intracellular signaling systems, shedding isoforms can regulate the expression of hundreds of plant genes.

Computed Properties

Molecular Weight:264.32
XLogP3:1.6
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:3
Exact Mass:264.13615911
Monoisotopic Mass:264.13615911
Topological Polar Surface Area:74.6
Heavy Atom Count:19
Complexity:494
Defined Atom Stereocenter Count:1
Undefined Bond Stereocenter Count:2
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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