Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

SML0471

Sigma-Aldrich

A22 hydrochloride

≥95% (HPLC)

Synonym(s):

MreB Perturbing Compound A22, S-(3,4-Dichlorobenzyl)isothiourea hydrochloride

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C8H8Cl2N2S · HCl
CAS Number:
22816-60-0
Molecular Weight:
271.59
MDL number:
MFCD00035050
UNSPSC Code:
51111800
PubChem Substance ID:
329825427
NACRES:
NA.77

Quality Level

100

Assay

≥95% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

H2O: 2 mg/mL (clear solution, warmed)

storage temp.

2-8°C

SMILES string

Cl.NC(=N)SCc1ccc(Cl)c(Cl)c1

InChI

1S/C8H8Cl2N2S.ClH/c9-6-2-1-5(3-7(6)10)4-13-8(11)12;/h1-3H,4H2,(H3,11,12);1H

InChI key

VBJNMXMOMSWRDV-UHFFFAOYSA-N

Application

A22 hydrochloride has been used to study its anti-biofilm activity, antibacterial, cyto and genotoxic activities. It is also used as a MreB polymerization inhibitor to understand the role of MreB polymers in Candidatus Thiosymbion oneisti and Candidatus T. hypermnestrae division.

Biochem/physiol Actions

A22 is an inhibitor of MreB, an actin-like bacterial protein, and has been shown to act as an antiobiotic adjuvant. A22 inhibition of MreB disrupts the bacterial actin cytoskeleton, which can cause an increase in cell permeability and altered transport. A22 has been shown to have synergistic effects with several antibiotics including novobiocin and rifampin in gram negative bacteria.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000360458
0000348662
0000360458
0000348662
0000186804

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Anti-biofilm activity of A22 ((S-3, 4-dichlorobenzyl) isothiourea hydrochloride) against Pseudomonas aeruginosa: Influence on biofilm formation, motility and bioadhesion.
Bonez P C, et al.
Microbial Pathogenesis, 111, 6-13 (2017)
Alam García-Heredia et al.
eLife, 10 (2021-02-06)
Many antibiotics target the assembly of cell wall peptidoglycan, an essential, heteropolymeric mesh that encases most bacteria. In rod-shaped bacteria, cell wall elongation is spatially precise yet relies on limited pools of lipid-linked precursors that generate and are attracted to
Host-polarized cell growth in animal symbionts.
Pende N, et al.
Current Biology, 28(7), 1039-1051 (2018)
Antibacterial, cyto and genotoxic activities of A22 compound ((S-3, 4-dichlorobenzyl) isothiourea hydrochloride).
Bonez P C, et al.
Microbial Pathogenesis, 99, 14-18 (2016)
Jan Lennings et al.
International journal of medical microbiology : IJMM, 309(6), 151335-151335 (2019-08-06)
The type VI secretion system (T6SS) injects effector proteins into neighboring bacteria and host cells. Effector translocation is driven by contraction of a tubular sheath in the cytoplasm that expels an inner needle across the cell envelope. The AAA + ATPase ClpV

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service