WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 564231

CAS#: 474-63-5

Description: 24-Methylenecholesterol is a natural marine sterol, which stimulates cholesterol acyl transferase (ACAT) in human macrophages.

Chemical Structure

CAS# 474-63-5

Theoretical Analysis

MedKoo Cat#: 564231
Name: 24-Methylenecholesterol
CAS#: 474-63-5
Chemical Formula: C28H46O
Exact Mass: 398.3549
Molecular Weight: 398.68
Elemental Analysis: C, 84.36; H, 11.63; O, 4.01

Price and Availability

Size Price Availability Quantity
5.0mg USD 1250.0 2 Weeks
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Synonym: Chalinasterol; Ostreasterol; 24-Methylenecholesterol;

IUPAC/Chemical Name: (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methyl-5-methyleneheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol


InChi Code: InChI=1S/C28H46O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h9,18,20,22-26,29H,3,7-8,10-17H2,1-2,4-6H3/t20-,22+,23+,24-,25+,26+,27+,28-/m1/s1

SMILES Code: CC(C)C(CC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@@]21C)=C

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 398.68 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Tsukagoshi Y, Suzuki H, Seki H, Muranaka T, Ohyama K, Fujimoto Y. Ajuga Δ24-Sterol Reductase Catalyzes the Direct Reductive Conversion of 24-Methylenecholesterol to Campesterol. J Biol Chem. 2016 Apr 8;291(15):8189-98. doi: 10.1074/jbc.M115.703470. Epub 2016 Feb 12. PubMed PMID: 26872973; PubMed Central PMCID: PMC4825020.

2: Nasu K, Takahashi K, Morisaki M, Fujimoto Y. Stereochemical fate of C-26 and C-27 during the conversion of isofucosterol to sitosterol and of 24-methylenecholesterol to campesterol and dihydrobrassicasterol in Oryza sativa cell cultures. Phytochemistry. 2000 Jun;54(4):381-5. PubMed PMID: 10897478.

3: Choe S, Dilkes BP, Gregory BD, Ross AS, Yuan H, Noguchi T, Fujioka S, Takatsuto S, Tanaka A, Yoshida S, Tax FE, Feldmann KA. The Arabidopsis dwarf1 mutant is defective in the conversion of 24-methylenecholesterol to campesterol in brassinosteroid biosynthesis. Plant Physiol. 1999 Mar;119(3):897-907. PubMed PMID: 10069828; PubMed Central PMCID: PMC32104.

4: Barbier M. Isolation of 24-methylenecholesterol-derived oxidation products from queen honeybee ovaries (Apis mellifica L.). J Chem Ecol. 1987 Jul;13(7):1681-7. doi: 10.1007/BF00980209. PubMed PMID: 24302336.

5: Teshima S, Kanazawa A, Yoshioka M, Kitahara K. Hypocholesterolemic effect of 24-methylenecholesterol and 7-cholestenol in the rat. J Steroid Biochem. 1974 Feb;5(1):69-72. PubMed PMID: 4845234.

6: Nes WR, Cannon JW, Thampi NS, Malya PA. Lack of mammalian reduction or alkylation of 24-methylenecholesterol. J Biol Chem. 1973 Jan 25;248(2):484-7. PubMed PMID: 4684690.

7: FAGERLUND UH, IDLER DR. Marine sterols. IX. Biosynthesis of 24-methylenecholesterol in clams. Can J Biochem Physiol. 1961 Sep;39:1347-55. PubMed PMID: 13697883.

8: BARBIER M, BOGDANOVSKY D. [Isolation and identification of 24-methylenecholesterol from the larva of queen bees and from royal jelly]. C R Seances Soc Biol Fil. 1961 May 29;252:3497-8. French. PubMed PMID: 13686806.

9: BERGMANN W, SCHEDL HP, LOW EM. Contributions to the study of marine products; chalinasterol. J Org Chem. 1945 Nov;10:587-93. PubMed PMID: 21009617.