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T6137

Sigma-Aldrich

Trioxsalen

≥98% (HPLC), powder, photochemical DNA crosslinker

Synonym(s):

2,5,9-Trimethylfuro[3,2-g]benzopyran-7-one, 4,5′,8-Trimethylpsoralen, TMP, Trisoralen

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About This Item

Empirical Formula (Hill Notation):
C14H12O3
CAS Number:
3902-71-4
Molecular Weight:
228.24
Beilstein/REAXYS Number:
221723
EC Number:
223-459-0
MDL number:
MFCD00005010
UNSPSC Code:
12352200
PubChem Substance ID:
24900351
NACRES:
NA.77

product name

Trioxsalen, ≥98% (HPLC), powder

Quality Level

200

assay

≥98% (HPLC)

form

powder

color

white

mp

229-231 °C (lit.)

solubility

chloroform: soluble 50 mg/mL, clear, colorless to faintly yellow

fluorescence

λex 269 nm; λem 445 nm in methanol
λex 321 nm; λem 445 nm (bound to DNA in Tris, pH 8.1)

originator

Valeant

storage temp.

−20°C

SMILES string

Cc1cc2cc3C(C)=CC(=O)Oc3c(C)c2o1

InChI

1S/C14H12O3/c1-7-4-12(15)17-14-9(3)13-10(6-11(7)14)5-8(2)16-13/h4-6H,1-3H3

InChI key

FMHHVULEAZTJMA-UHFFFAOYSA-N

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Application

Trioxsalen has been used for mutagenesis of N2 worms4,5.
Trioxsalen has been used:
  • to induce small deletion mutations in worms
  • in combination with ultraviolet A (UVA)
  • to induce interstrand crosslinks (ICLs) in DNA
  • for the preparation and photoactivation of trimethyl psoralen

Biochem/physiol Actions

Photochemical crosslinker of DNA that has been used as a probe for nucleic acid structure and function. Trioxsalen has also been used to crosslink DNA onto mica surfaces.
Trioxsalen (TRX) is a 4,5′,8-trimethylated psoralen analog, which belongs to the family of furocoumarins. It is mostly used to treat psoriasis.

Features and Benefits

This compound is a featured product for Apoptosis research. Click here to discover more featured Apoptosis products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound was developed by Valeant. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Preparation Note

Trioxsalen is soluble in chloroform at 50 mg/ml and yields a clear, colorless to faint yellow solution.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Methoxsalen United States Pharmacopeia (USP) Reference Standard

USP

1417001

Methoxsalen

Isolation of deletion mutants by reverse genetics in Caenorhabditis elegans
Park BJ, et al.
Korean Journal of Biological Sciences, 5(1), 65-69 (2001)
UHRF1 is a sensor for DNA interstrand crosslinks and recruits FANCD2 to initiate the Fanconi anemia pathway
Liang CC, et al.
Cell Reports, 10(12), 1947-1956 (2015)
Aurèle Piazza et al.
Methods in molecular biology (Clifton, N.J.), 2153, 535-554 (2020-08-26)
DNA double-strand breaks (DSBs) are genotoxic lesions that can be repaired in a templated fashion by homologous recombination (HR). HR is a complex pathway that involves the formation of DNA joint molecules (JMs) containing heteroduplex DNA. Various types of JMs
Filippo Doria et al.
Journal of medicinal chemistry, 50(26), 6570-6579 (2007-12-01)
Mild photoactivation of new BINOL-amino acid and -amino ester conjugates (BINOLAMs) yielded alkylating and DNA cross-linking agents with high photoefficiency and superior cytotoxicity. Detection of the transient electrophile, by laser flash photolysis (LFP), suggests that BINOL-quinone methides (QMs) are key
Chunru Lin et al.
Molecular and cellular biology, 25(17), 7484-7493 (2005-08-19)
We have previously demonstrated that p68 RNA helicase, as an essential human splicing factor, acts at the U1 snRNA and 5' splice site (5'ss) duplex in the pre-mRNA splicing process. To further analyze the function of p68 in the spliceosome
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