• 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

  • A6979

    Dihydroartemisinin

    Sesquiterpene lactone derived from Artemesia; m...

    ≥96%
  • N3448

    Nimodipine

    L-type Ca2+ channel blocker.

    ≥98%
  • P2810

    Phenylbutazone

    NSAID; COX-1/2 inhibitor.

    ≥98%
  • N1987

    Neuropeptide Y (13-36), human

    Endogenous peptide neurotransmitter, involved i...

    ≥95%
  • C2802

    CH5132799

    p110α PI3K inhibitor.

    ≥98%
  • L3455

    α-Linolenic Acid

    An omega-3 fatty acid.

    ≥98%
  • N5072

    NMS-1286937

    PLK1 inhibitor.

    ≥98%
  • A7669

    A-type Natriuretic Peptide (1-28), rat

    Endogenous cardiomodulatory peptide; NPR-A agon...

    ≥95%
  • L1785

    Levofloxacin Hemihydrate

    Fluoroquinolone, S-(-) isomer of ofloxacin; top...

    ≥98%
  • G4781

    Glucoraphanin Potassium

    Glucosinolate found in cruciferous vegetables.<...

    ≥98%
  • B3275

    Bis(3,5-dibromosalicyl) Succinate

    Aspirin analog; hemoglobin chain cross-linker.<...

    ≥95%
  • G0182

    Gastrin Releasing Peptide, pig

    Endogenous bombesin-like peptide, involved in f...

    ≥98%
  • M568262

    Mogrol

    Triterpenoid

    ≥99%
  • V3278

    Vitamin E Acetate

    Vitamin E analog, antioxidant.

    ≥98%
  • D0032

    Daidzein

    Phytoestrogen, isoflavone found in various plan...

    ≥97%
  • R1627

    Regorafenib Anhydrous

    Multikinase inhibitor.

    ≥99%
  • D1759

    Deoxynivalenol

    Trichothecene mycotoxin produced by Fusarium.

    ≥98%, TLC
  • G733400

    GSK-2578215A

    Selective inhibitor of LRRK2.

    ≥98%
  • P0013

    P7C3

    Aminopropyl carbazole, neuroprotective.

    ≥98%
  • P0252

    Pancuronium Bromide

    Non-depolarizing NMJ blocker; nAChR antagonist....

    ≥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