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Key Documents

A8986

Sigma-Aldrich

Alexidine dihydrochloride

≥95% (HPLC)

Synonym(s):

1,1′-Hexamethylene-bis(5-[2-ethylhexyl]biguanide)

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About This Item

Empirical Formula (Hill Notation):
C26H56N10 · 2HCl
CAS Number:
Molecular Weight:
581.71
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Quality Level

assay

≥95% (HPLC)

form

powder

storage condition

desiccated

color

white to off-white

solubility

DMSO: ≥10 mg/mL

storage temp.

−20°C

SMILES string

Cl.Cl.CCCCC(CC)CNC(=N)NC(=N)NCCCCCCNC(=N)NC(=N)NCC(CC)CCCC

InChI

1S/C26H56N10.2ClH/c1-5-9-15-21(7-3)19-33-25(29)35-23(27)31-17-13-11-12-14-18-32-24(28)36-26(30)34-20-22(8-4)16-10-6-2;;/h21-22H,5-20H2,1-4H3,(H5,27,29,31,33,35)(H5,28,30,32,34,36);2*1H

InChI key

BRJJFBHTDVWTCJ-UHFFFAOYSA-N

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Application

Alexidine dihydrochloride has been used:
  • as an antiseptic to study its antimicrobial activity in saliva-derived microcosm biofilms
  • as a protein tyrosine phosphatase localized to the mitochondrion 1 (PTPMT1)-specific inhibitor to study its effects on spare respiratory capacity and viability of CD8+ T cells
  • as a PTPMT1 inhibitor to study its antiviral effect on  human cytomegalovirus (HCMV) replication in HCMV-infected human foreskin fibroblast (HFF) cells

Biochem/physiol Actions

Alexidine dihydrochloride is a bisbiguanide compound. It has been studied in the treatment of head and neck cancer. Alexidine dihydrochloride also exhibits antibiofilm and antifungal activity against several fungal species. It causes mitochondrial apoptosis in mammalian cells due to its anti-cancer activity. Alexidine dihydrochloride is a component of oral disinfectant and contact lens solution.
Alexidine dihydrochloride is a potent and selective PTPMT1 (Protein Tyrosine Phosphatase Localized to the Mitochondrion 1) inhibitor. Alexidine increases insulin secretion by isolated rat pancreatic islets.

Features and Benefits

This compound is featured on the Phosphoprotein Phosphatases (Tyrosine) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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J A Chawner et al.
The Journal of applied bacteriology, 66(3), 243-252 (1989-03-01)
A comparative study of the growth inhibitory and bactericidal activities of two related bisbiguanide antiseptics, alexidine and chorhexidine is reported. Whilst overall bactericidal activities and MICs were similar, alexidine was more rapid in its action and it is suggested that
Sophia R Schwarz et al.
Clinical oral investigations, 25(5), 2939-2950 (2020-10-10)
The aims of this study were to investigate the antimicrobial efficacy of antiseptics in saliva-derived microcosm biofilms, and to examine phenotypic adaption of bacteria upon repeated exposure to sub-inhibitory antiseptic concentrations. Saliva-derived biofilms were formed mimicking caries- or gingivitis-associated conditions
J A Chawner et al.
The Journal of applied bacteriology, 66(3), 253-258 (1989-03-01)
Strains of Providencia stuartii with demonstrated resistance towards chlorhexidine did not show such resistance towards either of the related biguanide antiseptics, alexidine or vantocil. Alexidine promoted a significantly faster alteration in the permeability of Escherichia coli cell membranes towards various
Xiang Zhu et al.
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 31(3), 560-572 (2015-09-13)
Aseptic loosening and periprosthetic infection leading to inflammatory osteolysis is a major complication associated with total joint arthroplasty (TJA). The liberation of bacterial products and/or implant-derived wear particles activates immune cells that produce pro-osteoclastogenic cytokines that enhance osteoclast recruitment and
T E Balanyk et al.
Journal of dental research, 64(12), 1356-1360 (1985-12-01)
Two antimicrobial varnishes were developed to be applied to the teeth for the eradication of Streptococcus mutans infections. One of them contained chlorhexidine acetate as the antimicrobial agent and the other, erythromycin base. Both varnishes contained Sumatra benzoin. Each of

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Protein tyrosine phosphatases' catalytic mechanism involves transient phosphorylation.

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