• 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
Alfacalcidol

Alfacalcidol

Product ID A4521
Cas No. 41294-56-8
Purity ≥98%
Product Unit SizeCostQuantityStock
1 mg $90.00 In stock
5 mg $195.00 In stock
25 mg $550.00 In stock
Bulk Quote

Quicklinks

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

Description

Alfacalcidol is a vitamin D analog that requires 25-hydroxylation to become the active hormonal form of vitamin D3. Alfacalcidol is clinically used to treat osteoporosis, hyperparathyroidism, and renal bone disease. As an anti-osteoporotic, alfacalcidol increases bone strength and formation and displays anti-catabolic and anabolic effects on bone in vivo.

Product Info

Cas No.

41294-56-8

Purity

≥98%

Formula

C27H44O2

Formula Wt.

400.64

IUPAC Name

(1R,3S,5E)-5-[(2Z)-2-[(1R,3aS, 7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6, 7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1, 3-diol

Synonym

1-Hydroxyvitamin D3, 1-Hydroxycholecalciferol (1α,3β,5Z,7E)-9,10-Secocholesta-5,7,10(19)-triene-1,3-diol

Melting Point

136°C

Solubility

Soluble in THF and methanol.

Appearance

White Crystalline Powder

Shipping and Storage

Store Temp

-20°C

Ship Temp

Ambient

Downloads

MSDS

A4521 MSDS PDF

Info Sheet

A4521 Info Sheet PDF

References

Mazzaferro S, Goldsmith D, Larsson TE, et al. Vitamin D Metabolites and/or Analogs: Which D for Which Patient? Curr Vasc Pharmacol. 2014 Mar;12(2):339-49. PMID: 23713876.

Hara S, Kishimoto KN, Okuno H, et al. Effects of alfacalcidol on back extensor strength gained through back extensor exercise in postmenopausal women with osteoporosis. Am J Phys Med Rehabil. 2013 Feb;92(2):101-10. PMID: 23044701.

Chen H, Tian X, Liu X, et al. Alfacalcidol-stimulated focal bone formation on the cancellous surface and increased bone formation on the periosteal surface of the lumbar vertebrae of adult female rats. Calcif Tissue Int. 2008 Feb;82(2):127-36. PMID: 18175034.

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

  • C0261

    Captopril

    ACE inhibitor.

    ≥98%
  • G733409

    GSK-2982772

    RIP1 inhibitor.

    ≥98%
  • T0154

    Tanshinone IIA

    Found in Salvia; MAG lipase inhibitor.

    ≥93%
  • C4658

    Clopidogrel Sulfate

    Thienopyridine; P2Y12 antagonist.

    ≥98%
  • J6400

    (+)-JQ-1

    Triazolothienodiazepine; BRD inhibitor.

    ≥99%
  • L8276

    Luteinizing Hormone Releasing Hormone

    Endogenous peptide hormone; GnRH agonist.

    ≥98%
  • F4783

    Fluvoxamine Maleate

    FIASMA, 5-HT3 and σ1 agonist, SERT inhibitor.<...

    ≥97%
  • H9863

    Hyperforin Dicyclohexylammonium

    Stable salt form of hyperforin, a compound foun...

    ≥97%
  • D3462

    Diphenhydramine Hydrochloride

    Voltage-gated Na+ channel blocker, mAChR antago...

    ≥98%
  • G3359

    Ginkgolide J

    Terpene lactone found in Ginkgo.

    ≥98%
  • P2919

    L-Phenylalaninol

    Non-essential amino acid alcohol.

    ≥98%
  • L283720

    Losartan Carboxylic acid

    Active metabolite of losartan

    ≥ 99%
  • M5876

    Motesanib

    VEGFR1/2/3, PDGFR, c-Kit, RET inhibitor.

    ≥98%
  • Q8016

    Quercetin Dihydrate

    Flavonoid found in fruits, vegetables, and grai...

    ≥95%
  • C4656

    Clopidol

    Coccidiostat.

    ≥98%
  • E0929

    Echinacoside

    Phenylethanoid glycoside found in Echinacea.

    ≥98%
  • D0253

    Danazol

    Ethisterone derivative, synthetic steroid, used...

    ≥99%
  • E6996

    Erythromycin Thiocyanate

    Macrolide; protein translation inhibitor, mamma...

    ≥90%
  • L8248

    Lumiracoxib

    NSAID; COX-2 inhibitor.

    ≥98%
  • T0140

    TAK-632

    RAF inhibitor.

    ≥99%

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

©2026 LKT Laboratories, All Rights Reserved - Products for research use only