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HomeProduct name list(+)-Abscisic acid

(+)-Abscisic acid

Synonym(s):(+)-Abscisic Acid - CAS 21293-29-8 - Calbiochem;(+)-cis,trans-Abscisic Acid, S-ABA;(S)-5-(1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid;ABA;Dormin

  • CAS NO.:21293-29-8
  • Empirical Formula: C15H20O4
  • Molecular Weight: 264.32
  • MDL number: MFCD00066545
  • EINECS: 244-319-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-04 20:04:50
(+)-Abscisic acid Structural

What is (+)-Abscisic acid?

Chemical properties

White Powder

The Uses of (+)-Abscisic acid

The natural isomer of the abscission-accelerating plant hormone

The Uses of (+)-Abscisic acid

Valacyclovir intermediate

What are the applications of Application

(+)-cis,trans-Abscisic acid is a natural and active isomer of the abscission accelerating plant hormone.

Definition

ChEBI: The naturally occurring (1'S)-(+) enantiomer of abscisic acid. It is an important sesquiterpenoid plant hormone which acts as a regulator of plant responses to environmental stresses such as drought and cold.

Biochem/physiol Actions

Plant hormone and growth regulator that is involved in several physiological mechanisms including seed dormancy, leaf abscission, stomatal movement, and plant stress responses. Through complex interactions with several intracellular signaling systems, it can regulate the expression of hundreds of plant genes.

storage

-20°C

Purification Methods

Crystallise the acid from CCl4/pet ether, EtOH/hexane and sublime it at 120o. Also purify it by dissolving ~30g in 30mL of EtOAc, adding 100mL of hexane and allow to crystallise overnight (yield 8.4g), m 156-158o, 161-163o, [] D +426o (c 0.005M H2SO4 in MeOH). [Cornforth et al. Nature (London) 206 715 1965, Soukemp et al. Helv Chim Acta 72 361 1989.] The RS-isomer was purified on a Kieselgel F254 plate with toluene/EtOAc/AcOH (50:50:3) and has m 188-190o [Cornforth et al. Aust J Chem 45 179 1992]. [Beilstein 17/3 V 13.]

Properties of (+)-Abscisic acid

Melting point: 188 °C
Boiling point: 327.55°C (rough estimate)
alpha  D20 +411.1° (c = 1 in ethanol); D20 +426.5° (c = 1 in 0.005N methanolic H2SO4)
Density  1.0583 (rough estimate)
refractive index  410 ° (C=0.2, EtOH)
storage temp.  2-8°C
solubility  Chloroform (Slightly), Ethanol (Sparingly), Methanol (Slightly)
form  Off-white powder
pka 4.87±0.33(Predicted)
color  White to Pale Yellow
optical activity [α]/D 415±10°, c = 0.1 in ethanol
Merck  14,11
BRN  2698956
Stability: Light Sensitive
CAS DataBase Reference 21293-29-8(CAS DataBase Reference)
EPA Substance Registry System 2,4-Pentadienoic acid, 5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-, (2Z,4E)- (21293-29-8)

Safety information for (+)-Abscisic acid

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

Computed Descriptors for (+)-Abscisic acid

InChIKey JLIDBLDQVAYHNE-WEYXYWBQSA-N

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