WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 555717

CAS#: 313520-94-4

Description: TH-263 is an inactive analog control for the type III allosteric LIM-kinase (LIMK) inhibitors TH-257, TH-255 and TH-251. LIM kinases belong to the family of cytoplasmic tyrosine-like kinases with dual specificity (serine/threonine and tyrosine). However, known LIMK substrate are usually phosphorylated at serine and threonine residues LIM kinases comprises LIM kinase 1 (LIMK1) and LIM kinase 2 (LIMK2) which show 50% sequence identity in human. Both LIMK1 and LIMK2 present with a unique domain organization containing two N-terminal LIM domains, a PDZ domain, a proline/serine-rich domain and a C-terminal kinase domain.

Price and Availability

Size Price Shipping out time Quantity
50mg USD 450 2 Weeks
100mg USD 750 2 Weeks
200mg USD 1250 2 Weeks
500mg USD 1950 2 Weeks
1g USD 2950 2 Weeks
2g USD 5450 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-18. Prices are subject to change without notice.

TH-263, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 555717
Name: TH-263
CAS#: 313520-94-4
Chemical Formula: C21H20N2O3S
Exact Mass: 380.1195
Molecular Weight: 380.462
Elemental Analysis: C, 66.30; H, 5.30; N, 7.36; O, 12.62; S, 8.43

Related CAS #: 313520-94-4   1004044-80-7 (wrong structure)    

Synonym: TH-263; TH 263; TH263;

IUPAC/Chemical Name: N-benzyl-4-(N-benzylsulfamoyl)benzamide


InChi Code: InChI=1S/C21H20N2O3S/c24-21(22-15-17-7-3-1-4-8-17)19-11-13-20(14-12-19)27(25,26)23-16-18-9-5-2-6-10-18/h1-14,23H,15-16H2,(H,22,24)


Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>3 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Additional Information

Note: Sigma's TH-263 (cas3SML2276) has CAS#1004044-80-7, which is a wrong structure.

TH-257 is a chemical probe for LIMK1 and LIMK2. TH-257 is an allosteric inhibitor targeting a binding pocket induced by an αC and DFG-out conformation. It potently inhibits cofilin phosphorylation with an IC50 of 84 nM for LIMK1 and 39 nM for LIMK2 in a RapidFire MS assay. TH257 is exquisitely selective and no significant activity against the wider kinome has been observed in the KINOMEscan assay (Dx) at 1 μM (IC50 >> 50 % inhibition). In a life cell NanoBRET assay (Promega) TH257 has an IC50 of 250 nM against ectopically expressed full-length LIMK1 and 150 nM LIMK2, respectively.