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

MedKoo CAT#: 406243

CAS#: 86030-08-2

Description: BTB-1 is a novel small molecule inhibitor of the mitotic motor protein Kif18A, which was identified by Catarinella et al. during a highthroughput screen against Kif18A’s MT-stimulated ATPase activity, with an IC50 of 1.7–1.9 M . It is selective within the kinesin subgroup of Kif4, Eg5, MKLP-1, MKLP-2, MPP1, CENP-E and MCAK, and during in vitro motility assays Kif18A’s MT gliding ability was blocked by the addition of BTB-1 in a reversible manner. BTB-1 was found to be ATP competitive and MT uncompetitive, only inhibiting the ATPase activity of the MT-bound motor protein. BTB-1 could serve as a valuable tool in disentangling the nature of Kif18A’s double functionality within mitosis and assessing for potential therapeutic utilities.

Chemical Structure

CAS# 86030-08-2

Theoretical Analysis

MedKoo Cat#: 406243
Name: BTB-1
CAS#: 86030-08-2
Chemical Formula: C12H8ClNO4S
Exact Mass: 296.98626
Molecular Weight: 297.71
Elemental Analysis: C, 48.41; H, 2.71; Cl, 11.91; N, 4.70; O, 21.50; S, 10.77

Size Price Shipping out time Quantity
250mg USD 215 2 Weeks
500mg USD 375 2 Weeks
1g USD 565 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-01. Prices are subject to change without notice.

BTB-1, 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.

Synonym: BTB1; BTB 1 ; BTB-1.

IUPAC/Chemical Name: 4-chloro-2-nitro-1-(phenylsulfonyl)benzene


InChi Code: InChI=1S/C12H8ClNO4S/c13-9-6-7-12(11(8-9)14(15)16)19(17,18)10-4-2-1-3-5-10/h1-8H

SMILES Code: O=S(C1=CC=C(Cl)C=C1[N+]([O-])=O)(C2=CC=CC=C2)=O

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, not in water

Shelf Life:
>5 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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 297.71 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Catarinella M, Grüner T, Strittmatter T, Marx A, Mayer TU. BTB-1: a small molecule inhibitor of the mitotic motor protein Kif18A. Angew Chem Int Ed Engl. 2009;48(48):9072-6. doi: 10.1002/anie.200904510. PubMed PMID: 19856362.

Additional Information