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Safety Information

SML0422

Sigma-Aldrich

Istradefylline

≥98% (HPLC)

Synonym(s):

(E)-8-(3,4-Dimethoxystyryl)-1,3-diethyl-7-methylxanthine, 8-[(1E)-2-(3,4-Dimethoxyphenyl)ethenyl]-1,3-diethyl-3,7-dihydro-7-methyl-1H-purine-2,6-dione, KW-6002

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About This Item

Empirical Formula (Hill Notation):
C20H24N4O4
CAS Number:
155270-99-8
Molecular Weight:
384.43
MDL number:
MFCD00928421
UNSPSC Code:
12352200
PubChem Substance ID:
329825417
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 5 mg/mL (clear solution)

storage temp.

2-8°C

SMILES string

CCN1C(=O)N(CC)c2nc(\C=C\c3ccc(OC)c(OC)c3)n(C)c2C1=O

InChI

1S/C20H24N4O4/c1-6-23-18-17(19(25)24(7-2)20(23)26)22(3)16(21-18)11-9-13-8-10-14(27-4)15(12-13)28-5/h8-12H,6-7H2,1-5H3/b11-9+

InChI key

IQVRBWUUXZMOPW-PKNBQFBNSA-N

Gene Information

human ... ADORA2A(135)

Biochem/physiol Actions

Istradefylline (KW-6002) is a potent and selective adenosine A2A receptor selective antagonist which has been investigated for use in Parkinson′s Disease.

Features and Benefits

This compound is featured on the Adenosine Receptors page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301

Hazard Classifications

Acute Tox. 3 Oral

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SML0422-BULK:
SML0422-25MG:
SML0422-VAR:
SML0422-5MG:

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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Robert A Hauser et al.
Movement disorders : official journal of the Movement Disorder Society, 23(15), 2177-2185 (2008-10-04)
The objective of this study was to evaluate the efficacy, safety, and tolerability of istradefylline 20 mg once daily versus placebo as an adjunct to levodopa in subjects with Parkinson's disease (PD) who have motor fluctuations. Istradefylline (KW-6002) is an
P Jenner et al.
Parkinsonism & related disorders, 15(6), 406-413 (2009-05-19)
Adenosine derived from the degradation of ATP/AMP functions as a signalling molecule in the nervous system through the occupation of A1, A2, and A3 adenosine receptors. Adenosine A(2A) receptors have a selective localization to the basal ganglia and specifically to
H H Fernandez et al.
Parkinsonism & related disorders, 16(1), 16-20 (2009-07-21)
6002-US-051 was a 12-week, double-blind study evaluating the safety and efficacy of istradefylline, a selective A(2A) adenosine receptor antagonist, as monotherapy in patients with Parkinson's disease (PD). Patients with Hoehn-Yahr stages 1-2.5 who had not received dopaminergic drugs in the
Yoshikuni Mizuno et al.
Movement disorders : official journal of the Movement Disorder Society, 25(10), 1437-1443 (2010-07-16)
The objectives of this study were to evaluate the efficacy of istradefylline at an oral dose of 20 mg or 40 mg once daily for 12 weeks in Parkinson's disease (PD) patients with motor complications on levodopa therapy based on
Peter Jenner
Expert opinion on investigational drugs, 14(6), 729-738 (2005-07-12)
Dopamine replacement therapy effectively treats the early motor symptoms of Parkinson's disease (PD). However, its association with the development of motor complications limits its usefulness in late stages of the disease. Adenosine A(2A) receptors are localised to the indirect striatal
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