5'-Iodoresiniferatoxin

Modify Date: 2026-07-05 19:13:07

5'-Iodoresiniferatoxin Structure
5'-Iodoresiniferatoxin structure
Common Name 5'-Iodoresiniferatoxin
CAS Number 535974-91-5 Molecular Weight 754.60
Density 1.6±0.1 g/cm3 Boiling Point 782.4±60.0 °C at 760 mmHg
Molecular Formula C37H39IO9 Melting Point N/A
MSDS N/A Flash Point 427.0±32.9 °C

 Use of 5'-Iodoresiniferatoxin


5-Iodoresiniferatoxin (I-RTX) is a selective TRPV1 antagonist, with an IC50s of 0.7 and 5.4 nM for rat and human receptors, respectively. 5-Iodoresiniferatoxin induces TRPV1-dependent hypothermia in vivo[1].

 Names

Name i-rtx
Synonym More Synonyms

 5'-Iodoresiniferatoxin Biological Activity

Description 5-Iodoresiniferatoxin (I-RTX) is a selective TRPV1 antagonist, with an IC50s of 0.7 and 5.4 nM for rat and human receptors, respectively. 5-Iodoresiniferatoxin induces TRPV1-dependent hypothermia in vivo[1].
Related Catalog
Target

rTRPV1:0.7 nM (IC50)

hTRPV1:5.4 nM (IC50)

References

[1]. Seabrook GR, et, al. Functional properties of the high-affinity TRPV1 (VR1) vanilloid receptor antagonist (4-hydroxy-5-iodo-3-methoxyphenylacetate ester) iodo-resiniferatoxin. J Pharmacol Exp Ther. 2002 Dec;303(3):1052-60.  

[2]. Shimizu I, et, al. 5-Iodoresiniferatoxin evokes hypothermia in mice and is a partial transient receptor potential vanilloid 1 agonist in vitro. J Pharmacol Exp Ther. 2005 Sep;314(3):1378-85.  

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 782.4±60.0 °C at 760 mmHg
Molecular Formula C37H39IO9
Molecular Weight 754.60
Flash Point 427.0±32.9 °C
Exact Mass 754.163879
PSA 120.75000
LogP 6.65
Vapour Pressure 0.0±2.8 mmHg at 25°C
Index of Refraction 1.671
InChIKey TZUJORCXGLGWDV-OXSIMREDSA-N
SMILES C=C(C)C12CC(C)C34OC(Cc5ccccc5)(OC1C3C=C(COC(=O)Cc1cc(I)c(O)c(OC)c1)CC1(O)C(=O)C(C)=CC14)O2

 5'-IodoresiniferatoxinBioassay

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Name: Displacement of [3H]RTX from human TRPV1 expressed in CHO cells
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL2428534
Name: Agonist activity at human TRPV1 expressed in CHO cells assessed as stimulation of Ca2...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL2428533
Name: Agonist activity at rat TRPV1 receptor expressed in CHO cells assessed as calcium 45 ...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL926239
Name: Antagonist activity at human TRPV1 expressed in CHO cells assessed as inhibition of R...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL3102685
Name: Agonist activity at human TRPV1 expressed in CHO cells assessed as 45Ca2+ uptake afte...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL3102686
Name: Displacement of [3H]RTX from human TRPV1 expressed in CHO cells after 60 mins by liqu...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL3100277
Name: Antagonist activity at human TRPV1 expressed in CHO cells assessed as inhibition of c...
Source: ChEMBL
Target: Transient receptor potential cation channel subfamily V member 1
External Id: CHEMBL2428531
Name: Human TRPV1 (Transient Receptor Potential channels)
Source: IUPHAR-DB
Target: TRPV1 (Transient Receptor Potential channels) [Homo sapiens]
External Id: 507_Human
Name: Inhibition of rat brain FAAH assessed by measuring [14C]anandamide hydrolysis at 50 u...
Source: ChEMBL
Target: Fatty-acid amide hydrolase 1
External Id: CHEMBL902592
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 Synonyms

[(1R,2R,6R,10S,11R,15R,17R)-13-Benzyl-6-hydroxy-15-isopropenyl-4,17-dimethyl-5-oxo-12,14,18-trioxapentacyclo[11.4.1.0.0.0]octadeca-3,8-dien-8-yl]methyl (4-hydroxy-3-iodo-5-methoxyphe nyl)acetate
5-I-RTX
5'-Iodoresiniferatoxin
Benzeneacetic acid, 4-hydroxy-3-iodo-5-methoxy-, [(3aR,3bS,6aR,9aR,9bR,10R,11aR)-3a,3b,6,6a,9a,10,11,11a-octahydro-6a-hydroxy-8,10-dimethyl-11a-(1-methylethenyl)-7-oxo-2-(phenylmethyl)-7H-2,9b-epoxyazuleno[4',5':5,6]benzo[1,2-d]-1,3-dioxol-5-yl]methyl ester
[(1R,2R,6R,10S,11R,15R,17R)-13-Benzyl-6-hydroxy-4,17-dimethyl-5-oxo-15-(prop-1-en-2-yl)-12,14,18-trioxapentacyclo[11.4.1.0.0.0]octadeca-3,8-dien-8-yl]methyl (4-hydroxy-3-iodo-5-methoxyphenyl)acetate
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