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

MedKoo CAT#: 206459

CAS#: 1282041-94-4

Description: DSM265 is a long-duration, potent and selective dihydroorotate dehydrogenase (DHODH)) inhibitor. DSM265 is potential useful for the prevention and treatment of malaria. DSM265 is the first DHODH inhibitor to reach clinical development for treatment of malaria. DSM265 is highly selective toward DHODH of the malaria parasite Plasmodium, efficacious against both blood and liver stages of P. falciparum, and active against drug-resistant parasite isolates. DSM265 has advantages over current treatment options that are dosed daily or are inactive against the parasite liver stage.

Chemical Structure

CAS# 1282041-94-4

Theoretical Analysis

MedKoo Cat#: 206459
Name: DSM265
CAS#: 1282041-94-4
Chemical Formula: C14H12F7N5S
Exact Mass: 415.0702
Molecular Weight: 415.33
Elemental Analysis: C, 40.49; H, 2.91; F, 32.02; N, 16.86; S, 7.72

Price and Availability

Size Price Availability Quantity
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 3150.0 2 weeks
2.0g USD 5450.0 2 weeks
5.0g USD 7950.0 2 weeks
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Synonym: DSM265; DSM-265; DSM 265; 1282041-94-4

IUPAC/Chemical Name: 2-(1,1-difluoroethyl)-5-methyl-N-(4-(pentafluoro-l6-sulfanyl)phenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine


InChi Code: InChI=1S/C14H12F7N5S/c1-8-7-11(26-13(22-8)24-12(25-26)14(2,15)16)23-9-3-5-10(6-4-9)27(17,18,19,20)21/h3-7,23H,1-2H3

SMILES Code: FS(F)(F)(F)(C1=CC=C(NC2=CC(C)=NC3=NC(C(F)(F)C)=NN23)C=C1)F

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

Preparing Stock Solutions

The following data is based on the product molecular weight 415.33 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: Phillips MA, Lotharius J, Marsh K, White J, Dayan A, White KL, Njoroge JW, El
Mazouni F, Lao Y, Kokkonda S, Tomchick DR, Deng X, Laird T, Bhatia SN, March S,
Ng CL, Fidock DA, Wittlin S, Lafuente-Monasterio M, Benito FJ, Alonso LM,
Martinez MS, Jimenez-Diaz MB, Bazaga SF, Angulo-Barturen I, Haselden JN, Louttit
J, Cui Y, Sridhar A, Zeeman AM, Kocken C, Sauerwein R, Dechering K, Avery VM,
Duffy S, Delves M, Sinden R, Ruecker A, Wickham KS, Rochford R, Gahagen J, Iyer
L, Riccio E, Mirsalis J, Bathhurst I, Rueckle T, Ding X, Campo B, Leroy D, Rogers
MJ, Rathod PK, Burrows JN, Charman SA. A long-duration dihydroorotate
dehydrogenase inhibitor (DSM265) for prevention and treatment of malaria. Sci
Transl Med. 2015 Jul 15;7(296):296ra111. doi: 10.1126/scitranslmed.aaa6645.
PubMed PMID: 26180101; PubMed Central PMCID: PMC4539048.

2: Held J, Jeyaraj S, Kreidenweiss A. Antimalarial compounds in Phase II clinical
development. Expert Opin Investig Drugs. 2015 Mar;24(3):363-82. doi:
10.1517/13543784.2015.1000483. Epub 2015 Jan 7. Review. PubMed PMID: 25563531.

3: Gamo FJ. Antimalarial drug resistance: new treatments options for Plasmodium.
Drug Discov Today Technol. 2014 Mar;11:81-88. doi: 10.1016/j.ddtec.2014.03.002.
Review. PubMed PMID: 24847657.

4: Coteron JM, Marco M, Esquivias J, Deng X, White KL, White J, Koltun M, El
Mazouni F, Kokkonda S, Katneni K, Bhamidipati R, Shackleford DM, Angulo-Barturen
I, Ferrer SB, Jiménez-Díaz MB, Gamo FJ, Goldsmith EJ, Charman WN, Bathurst I,
Floyd D, Matthews D, Burrows JN, Rathod PK, Charman SA, Phillips MA.
Structure-guided lead optimization of triazolopyrimidine-ring substituents
identifies potent Plasmodium falciparum dihydroorotate dehydrogenase inhibitors
with clinical candidate potential. J Med Chem. 2011 Aug 11;54(15):5540-61. doi:
10.1021/jm200592f. Epub 2011 Jul 14. PubMed PMID: 21696174; PubMed Central PMCID:


50.0mg / USD 250.0