A plant growth regulator
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Pyrabactin

Item No. 44566

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
4-bromo-N-(2-pyridinylmethyl)-1-naphthalenesulfonamide
CAS Number
419538-69-5
Molecular Formula
C16H13BrN2O2S
Formula Weight
377.3
Purity
≥98%
Formulation (Request formulation change)
A solid
Solubility(Learn about Variance in Solubility)
DMSO: Soluble: ≥ 10 mg/mlEthanol: Sparingly soluble: 1-10 mg/ml
SMILES
O=S(NCC1=NC=CC=C1)(C2=CC=C(C3=C2C=CC=C3)Br)=O
InChi Code
InChI=1S/C16H13BrN2O2S/c17-15-8-9-16(14-7-2-1-6-13(14)15)22(20,21)19-11-12-5-3-4-10-18-12/h1-10,19H,11H2
InChi Key
GJSDYQXOSHKOGX-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    1 mg

    $49

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    5 mg

    $135

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    10 mg

    $180

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    25 mg

    $394

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    Product Description

    Pyrabactin is a plant growth regulator and synthetic abscisic acid (ABA) agonist.1,2,3 It inhibits A. thaliana PYL1-dependent ABI1 protein phosphatase 2C (PP2C) activity in a cell-free assay (IC50 = 1.14 µM).1 Pyrabactin (1 µM) increases root hydraulic conductivity in Z. mays seedlings.2 It also induces stomatal closure in abaxial epidermal strips of P. sativum.3

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Hao, Q., Yin, P., Yan, C., et al. Functional mechanism of the abscisic acid agonist pyrabactin. The Journal of Biological Chemisty 285(37), 28946-28957 (2010).

    2. Fan, W., Li, J., Jia, J., et al. Pyrabactin regulates root hydraulic properties in maize seedlings by affecting PIP aquaporins in a phosphorylation-dependent manner. Plant Physiol. Biochem. 94, 28-34 (2015).

    3. Puli, M.R., and Raghavendra, A.S. Pyrabactin, an ABA agonist, induced stomatal closure and changes in signalling components of guard cells in abaxial epidermis of Pisum sativum. J. Exp. Bot. 63(3), 1349-1359 (2012).