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Resorufin ethyl ether

CAS No.
5725-91-7
Chemical Name:
Resorufin ethyl ether
Synonyms
ETHOXYRESORUFIN;7-ETHOXYRESORUFIN;7-ER;O7-ETHYLRESORUFIN;7-Ethoxy Rresorufin;7-Ethoxyphenoxazone;RESORUFIN ETHYL ESTER;Resorufin ethyl ether;7-ethoxyphenoxazin-3-one;Thiabendazole Impurity 19
CBNumber:
CB3203954
Molecular Formula:
C14H11NO3
Molecular Weight:
241.24
MDL Number:
MFCD00037661
MOL File:
5725-91-7.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:51:46

Resorufin ethyl ether Properties

Melting point 223-225 °C (lit.)
Boiling point 389.3±42.0 °C(Predicted)
Density 1.29±0.1 g/cm3(Predicted)
storage temp. -20°C
solubility DMF: soluble
form Brown solid.
pka 1.43±0.20(Predicted)
color Dark Orange to Red
BRN 225973
InChIKey ZOSYTBPPLWBBKM-UHFFFAOYSA-N
SMILES CCOc1ccc2N=C3C=CC(=O)C=C3Oc2c1.Fc4c(F)c(F)c(OC(=O)CNC(=O)OCC5c6ccccc6-c7ccccc57)c(F)c4F
FDA UNII 59AF853SW7
UNSPSC Code 12161501
NACRES NA.47

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362+P364-P403+P233-P501c
PPE Eyeshields, Gloves, type N95 (US)
WGK Germany  3
8-10
Storage Class 11 - Combustible Solids

Resorufin ethyl ether price More Price(49)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 46121 Resorufin ethyl ether suitable for fluorescence, ≥95% (UV) 5725-91-7 5mg $478 2026-04-30 Buy
Sigma-Aldrich 46121 Resorufin ethyl ether suitable for fluorescence, ≥95% (UV) 5725-91-7 25mg $1860 2026-04-30 Buy
Cayman Chemical 16122 7-Ethoxyresorufin ≥95% 5725-91-7 1mg $63 2026-04-30 Buy
Cayman Chemical 16122 7-Ethoxyresorufin ≥95% 5725-91-7 10mg $190 2026-04-30 Buy
Usbiological E8577-60 7-Ethoxyresorufin (7-Ethoxy-3H-phenoxazin-3-one, Resorufin Ethyl Ester) ~90% 5725-91-7 10mg $389 2026-06-03 Buy
Product number Packaging Price Buy
46121 5mg $478 Buy
46121 25mg $1860 Buy
16122 1mg $63 Buy
16122 10mg $190 Buy
E8577-60 10mg $389 Buy

Resorufin ethyl ether Chemical Properties, Uses, Production

Chemical Properties

Red Solid

Uses

A fluorimetric substrate for cytochrome P450 IAI. Inhibits vasorelaxant responses to acetylcholine

Uses

Dealkylase substrate for the microfluorimetric analysis of microsomal cytochrome P-450.

Uses

Resorufin ethyl ether is suitable for the study of dealkylating activity of cytochrome P450 isozymes 1A1 and 1A2, where arylalkyl and alkyl isothiocyanates, and their glutathione, cysteine, and A′-acetylcysteine conjugates are used as inhibitors. It is suitable to study the ethoxyresorufin-O-deethylase (EROD) activity of cytochrome P450 activity (CYP1A1).

Definition

ChEBI: 7-ethoxyresorufin is a phenoxazine.

General Description

Resorufin ethers are used as markers or substrates for different cytochrome P (CYP) isoforms. Resorufin ethyl ether is the preferred resorufin ether to be metabolized by microsomes of 3-methylcholanthrene treated animals.

Biological Activity

cytochrome p450, family 1, subfamily a, polypeptide 1 is a protein that is encoded by human cyp1a1 gene. the protein is a member of the cytochrome p450 superfamily of enzymes. cyp1a1 is involved in phase i xenobiotic and drug metabolism. cyp1a1 is inhibited by fluoroquinolones and macrolides and induced by aromatic hydrocarbons. 7-ethoxyresorufin is a specific subtrate of cyp1a.

in vitro

7-ethoxyresorufin (2-10 microm), a substrate for cytochrome p450, which binds to the heme moiety of the enzyme, reduced responses to acetylcholine concentration-dependently but not the other agonists indicating an effect on nitric oxide synthesis although neither affected the conversion of l-arginine to l-citrulline [1].

in vivo

activities of cyp1a (7-ethoxyresorufin) in the liver was determined for comparative purposes. in mice, lps depressed cyp2a5 at low doses but not at doses that increased pro-inflammatory cytokines and no serum levels, and depressed cyp1a activity. blockade of proinflammatory cytokines extended down-regulation of cyp2a5 while not affecting lps-induced depression of cyp1a [2].

storage

Store at -20°C

References

[1] oyekan ao, mcgiff jc, rosencrantz-weiss p, quilley j. relaxant responses of rabbit aorta: influence of cytochrome p450 inhibitors. j pharmacol exp ther. 1994 jan;268(1):262-9.
[2] de-oliveira ac, poça ks, totino pr, paumgartten fj. modulation of cytochrome p450 2a5 activity by lipopolysaccharide: low-dose effects and non-monotonic dose-response relationship. plos one. 2015 jan 30;10(1):e0117842.
[3] pelkonen o, pasanen m, kuha h, gachalyi b, kairaluoma m, sotaniemi ea, park ss, friedman fk, gelboin hv. the effect of cigarette smoking on 7-ethoxyresorufin o-deethylase and other monooxygenase activities in human liver: analyses with monoclonal antibodies. br j clin pharmacol. 1986 aug;22(2):125-34.

108-46-3
5725-91-7
Synthesis of Resorufin ethyl ether from Resorcinol

Resorufin ethyl ether Preparation Products And Raw materials

Raw materials

Preparation Products

Resorufin ethyl ether Suppliers

Global Suppliers ( 129)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
ShangHai YuanYe Biotechnology Co., Ltd. 15026964105 shyysw007@163.com China 4998 60
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Shanghai Aladdin Bio-Chem Technology Co.,LTD 400-6206333 13167063860 anhua.mao@aladdin-e.com China 29977 65
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80

View Latest Price from Resorufin ethyl ether manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
7-Ethoxyresorufin pictures 2026-07-27 7-Ethoxyresorufin
5725-91-7
$30.00-61.00 99.62% 10g TargetMol Chemicals Inc.

Resorufin ethyl ether Spectrum

RESORUFIN ETHYL ESTER O7-ETHYLRESORUFIN 7-ER O(7)-ETHYLRESORUFIN, FOR FLUOR- O(7)-ETHYLRESORUFIN FOR FLUORESCENCE 7-Ethoxy-3H-phenoxazin-3-one, Resorufin Ethyl Ester 3H-Phenoxazin-3-one, 7-ethoxy- 7-ETHOXY-3H-PHENOXAZIN-3-ONE ETHOXYRESORUFIN [RESORUFIN ETHYL ETHER] 7-ethoxyphenoxazin-3-one Resorufin ethyl ether,7-Ethoxy-3H-phenoxazin-3-one, Ethoxyresorufin, O7-Ethylresorufin 7-Ethoxy Rresorufin Resorufin ethyl ether *CAS 5725-91-7* 7-Ethoxy-3H-phenoxazin-3-one, Ethoxyresorufin, O7-Ethylresorufin 7-Ethoxyphenoxazone Nitric oxide synthases,7-Ethoxyresorufin,Cytochrome P450,CYP1A1,7 Ethoxyresorufin,inhibit,7Ethoxyresorufin,Inhibitor,substrate,CYPs,Fluorometric,NO Synthase,NOS Thiabendazole Impurity 19 7-Ethoxyresorufin, 10 mM in DMSO 7-ETHOXYRESORUFIN ETHOXYRESORUFIN Resorufin ethyl ether 5725-91-7 Fluorescent Probes, Labels, Particles and Stains Fluorescent Enzyme Substrates Alphabetical Detection BioChemical Biochemicals and Reagents Heterocycles All Inhibitors Inhibitors Intermediates & Fine Chemicals Pharmaceuticals