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Key Documents

I5773

Sigma-Aldrich

IDRA 21

≥98%

Synonym(s):

7-Chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide

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About This Item

Empirical Formula (Hill Notation):
C8H9ClN2O2S
CAS Number:
Molecular Weight:
232.69
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Assay

≥98%

SMILES string

CC1Nc2ccc(Cl)cc2S(=O)(=O)N1

InChI

1S/C8H9ClN2O2S/c1-5-10-7-3-2-6(9)4-8(7)14(12,13)11-5/h2-5,10-11H,1H3

InChI key

VZRNTCHTJRLTMU-UHFFFAOYSA-N

Biochem/physiol Actions

Blocks the rapid desensitization of the AMPA receptors and markedly prolongs the decay time of the evoked excitatory post-synaptic current.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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K A Yamada et al.
Neurobiology of disease, 5(3), 196-205 (1998-12-16)
The diazoxide derivative 7-chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine-S,S-dioxide (IDRA21) enhances memory and learning in rodents, most likely by potentiating AMPAergic synaptic activity. We examined IDRA21's effect upon AMPAergic synaptic currents and whole-cell glutamate currents in cultured rat hippocampal neurons to determine whether IDRA21 was
Mark D Black
Psychopharmacology, 179(1), 154-163 (2005-01-27)
Positive alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) modulators enhance glutamate transmission via the AMPA receptor by altering the rate of desensitization; alone they have no intrinsic activity. They are the only class of compounds known that may pharmacologically separate AMPA subtypes. This manuscript
A Arai et al.
Neuroreport, 7(13), 2211-2215 (1996-09-02)
IDRA 21 (7-chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine S,S-dioxide) has been reported to modulate AMPA receptor kinetics and to improve memory in certain animal models. In the present study, its effects on synaptic transmission and long-term potentiation (LTP) were tested in hippocampal slices. IDRA 21
G Puia et al.
Progress in neuro-psychopharmacology & biological psychiatry, 24(6), 1007-1015 (2000-10-21)
1. Patch-clamp technique was used in primary cultures of cerebellar granule neurons to study the modulation of the cyclothiazide analogue (IDRA21) and of the diazoxide derivative (IDRA 5) on KA-evoked currents. 2. The dose-response of kainic acid (KA) reveals an
D P Uzunov et al.
Journal of pharmaceutical sciences, 84(8), 937-942 (1995-08-01)
The direct analytical and semipreparative high-performance liquid chromatographic (HPLC) resolution of the enantiomers of IDRA 21 [1,7-chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine S,S-dioxide] is reported. (+/-)-IDRA 21 administered orally to rats subjected to a water maze cognition test elicited a performance enhancing effect. Between the

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