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

MedKoo CAT#: 205999

CAS#: 444606-18-2 (free base)

Description: Dilmapimod, also known as SB-681323 and GW-681323 , is p38 MAPK inhibitor. SB-681323 inhibited the p38 MAPK pathway to a greater degree than prednisolone did. SB-681323 inhibited TNF-alpha production. SB-681323 is a potent p38 MAPK inhibitor that potentially suppresses inflammation in COPD. The treatment with SB-681832 is a safe and effective means of reducing hsCRP in patients undergoing elective PCI.

Chemical Structure

CAS# 444606-18-2 (free base)

Theoretical Analysis

MedKoo Cat#: 205999
Name: Dilmapimod
CAS#: 444606-18-2 (free base)
Chemical Formula: C23H19F3N4O3
Exact Mass: 456.14093
Molecular Weight: 456.42
Elemental Analysis: C, 60.52; H, 4.20; F, 12.49; N, 12.28; O, 10.52

Price and Availability

Size Price Availability Quantity
10.0mg USD 80.0 Same day
25.0mg USD 150.0 Same day
50.0mg USD 250.0 Same day
100.0mg USD 450.0 Same day
200.0mg USD 850.0 Same day
500.0mg USD 1850.0 Same day
1.0g USD 2950.0 2 Weeks
2.0g USD 5450.0 2 Weeks
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Related CAS #: 937169-00-1 (tosylate)   444606-18-2 (free base)    

Synonym: SB681323; SB 681323; SB-681323; GW 681323; GW-681323; GW681323; Dilmapimod.

IUPAC/Chemical Name: 8-(2,6-difluorophenyl)-2-((1,3-dihydroxypropan-2-yl)amino)-4-(4-fluoro-2-methylphenyl)pyrido[2,3-d]pyrimidin-7(8H)-one


InChi Code: InChI=1S/C23H19F3N4O3/c1-12-9-13(24)5-6-15(12)20-16-7-8-19(33)30(21-17(25)3-2-4-18(21)26)22(16)29-23(28-20)27-14(10-31)11-32/h2-9,14,31-32H,10-11H2,1H3,(H,27,28,29)


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, not in water

Shelf Life: >2 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: 2934.99.9001

Biological target: Dilmapimod, also known as SB-681323 and GW-681323 , is p38 MAPK inhibitor.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 125.0 273.87

Preparing Stock Solutions

The following data is based on the product molecular weight 456.42 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: Betts JC, Mayer RJ, Tal-Singer R, Warnock L, Clayton C, Bates S, Hoffman BE, Larminie C, Singh D. Gene expression changes caused by the p38 MAPK inhibitor dilmapimod in COPD patients: analysis of blood and sputum samples from a randomized, placebo-controlled clinical trial. Pharmacol Res Perspect. 2015 Feb;3(1):e00094. doi: 10.1002/prp2.94. Epub 2014 Dec 9. PubMed PMID: 25692013; PubMed Central PMCID: PMC4317226.

Additional Information