• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
Pseudolaric Acid B

Pseudolaric Acid B

Product ID P7219
Cas No. 82508-31-4
Purity ≥98%
Product Unit SizeCostQuantityStock
1 mg $178.60 In stock
5 mg $802.10 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

Psuedolaric acid B (PAB) is a diterpene acid found in the root bark and trunk bark of Pseudolarix kaempferi. PAB exhibits anticancer chemotherapeutic, immunosuppressive, anti-angiogenic, anti-inflammatory, and antifungal activities in a variety of models. In vitro, PAB activates caspases 3 and 9, upregulates Bax and Bad, and downregulates Bcl-2 and Bcl-xl, inducing apoptosis. PAB also increases PKC activity, inducing cell cycle arrest, autophagy, and senescence in cancer cell lines. In other models, PAB competitively inhibits tubulin assembly, preventing formation of mitotic spindles and microtubule polymerization. In animal models with tumor xenografts, this compound decreases tumor weight. Additionally, PAB downregulates expression of pro-angiogenic factors such as VEGF, HIF-1α, and cyclin E. PAB decreases IL-2 production by T cells and inhibits T cell proliferation in vitro. This compound also inhibits translocation of NF-κB and expression of cyclooxygenase (COX-2), decreasing production of prostaglandin E2 (PGE2). PAB displays antifungal activity against a variety of fungi both in vitro and in vivo.

Product Info

Cas No.

82508-31-4

Purity

≥98%

Formula

C23H28O8

Formula Wt.

432.46

Chemical Name

(2E,4E)-5-[(1S,7S,8S,9R)-7-acetyloxy-4-methoxycarbonyl-9-methyl-11-oxo-10-oxatricyclo[6.3.2.01,7]tridec-3-en-9-yl]-2-methylpenta-2,4-dienoic acid

IUPAC Name

(2E,4E)-5-[(1S,7S,8S,9R)-7-acetyloxy-4-methoxycarbonyl-9-methyl-11-oxo-10-oxatricyclo[6.3.2.01,7]tridec-3-en-9-yl]-2-methylpenta-2,4-dienoic acid

Synonym

PAB

Appearance

White to off white powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

P7219 MSDS PDF

Info Sheet

P7219 Info Sheet PDF

References

Pseudolaric acid B induces caspase-dependent cell death in human ovarian cancer cells. Yu B, Yue DM, Shu LH, Li NJ, Wang JH. Oncol Rep. 2013 Nov 25. [Epub ahead of print]. PMID: 24276652.

Role of pseudolaric acid B in A549 lung cancer cell proliferation and apoptosis. Guan T, Yang Y. Mol Med Rep. 2014 Jan;9(1):144-8. PMID: 24248012.

Yu Jh, Liu Cy, Zheng Gb, et al. Pseudolaric acid B induced cell cycle arrest, autophagy and senescence in murine fibrosarcoma l929 cell. Int J Med Sci. 2013 Apr 9;10(6):707-18. PMID: 23630435.

Sarkar T, Nguyen TL, Su ZW, et al. Interaction of pseudolaric acid B with the colchicine site of tubulin. Biochem Pharmacol. 2012 Aug 15;84(4):444-50. PMID: 22634405

Wei N, Li T, Chen H, Mei X, et al. The immunosuppressive activity of pseudolaric acid B on T lymphocytes in vitro. Phytother Res. 2013 Jul;27(7):980-5. PMID: 22893196.

Liu J, Guo W, Xu B, et al. Angiogenesis inhibition and cell cycle arrest induced by treatment with Pseudolarix acid B alone or combined with 5-fluorouracil. Acta Biochim Biophys Sin (Shanghai). 2012 Jun;44(6):490-502. PMID: 22551583

Hou L, Xu B, Guo W, et al. Pseudolaric acid B inhibits inducible cyclooxygenase-2 expression via downregulation of the NF-κB pathway in HT-29 cells. J Cancer Res Clin Oncol. 2012 Feb 8. [Epub ahead of print]. PMID: 22314698.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • P3209

    Piceatannol

    Polyphenolic hydroxystilbene, resveratrol deri...

    ≥99%
  • T3134

    Thiostrepton

    Thiazole; proteasome inhibitor, protein translo...

    ≥97%, HPLC
  • G1721

    Gefitinib

    EGFR inhibitor.

    ≥98%
  • I6933

    Irinotecan Hydrochloride Trihydrate

    Camptothecin analog; topoisomerase I inhibitor,...

    ≥98%
  • A0248

    BAM-12P

    Peptide, cleavage product of proenkephalin; κO...

    ≥95%
  • T5605

    Tobramycin Sulfate

    Aminoglycoside; protein translation inhibitor.<...

    ≥98%
  • A745817

    Asunaprevir

    Antiviral againt SARS-CoV-2

    ≥98%
  • D183736

    19-O-Desmethoxy rapamycin

    Fermentation impurity

    ≥94%
  • P3542

    PIK-93

    p110α and p110γ PI3K inhibitor.

    ≥98%
  • S0045

    Salbutamol Sulfate

    β2-adrenergic agonist.

    ≥98%
  • A6925

    L-Arginine Ethyl Ester Dihydrochloride

    Arginine source used to increase NO production....

    ≥98%
  • M0255

    Manzamine A

    Alkaloid found in marine sponges; vacuolar ATPa...

    ≥98%
  • K0652

    Kb NB 142-70

    PKD inhibitor.

    ≥98%
  • R3577

    Ritonavir

    HIV protease inhibitor.

    ≥98%
  • Y4802

    YM-201636

    PIKfyve inhibitor.

    ≥98%
  • G691343

    Griseofulvin

    Fungistatic

    ≥98%
  • SB5776

    Snake venom – Bothrops alternatus (urutu)

    Snake venom found in Bothrops alternatus urutu....

    ≥98%
  • M4652

    MLN8237

    AurKA inhibitor.

    ≥98%
  • N3213

    Nidulal

    Sesquiterpene found in Nidula.

    ≥95%
  • I4962

    Isoimperatorin

    Furocoumarin; COX-2 inhibitor.

    ≥98%

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2025 LKT Laboratories, All Rights Reserved - Products for research use only