Chlorhexidine dihydrochloride - ≥98% , CAS No.3697-42-5

CAS: 3697-42-5 Cat. No.: C113898 Molecular Weight: 578.37 EC Number: 223-026-6 PubChem CID: 9571016
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
CHLORHEXIDINE DIHYDROCHLORIDE (EP MONOGRAPH) | Chlorhexidine dihydrochloride, European Pharmacopoeia (EP) Reference Standard | Chlorhexidine HCl | 1,1'-Hexamethylenebis(5-(p-chlorophenyl)biguanide) dihydrochloride | NSC 756679 | CHLORHEXIDINE HYDROCHLORID
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
C113898-5g
1

$9.90

$14.90
Save $5.00 (33.56%)
25g
C113898-25g
3

$18.90

$28.90
Save $10.00 (34.60%)
100g
C113898-100g
2

$56.90

$85.90
Save $29.00 (33.76%)
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🧪

Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Chlorhexidine, Dihydrochloride is an anti-microbial agent that acts as an inhibitor of MMP-2 and MMP-9 metalloproteinases. However, MMP-2 is more sensitive to chlorhexidine than MMP-9. Chlorhexidine dihydrochloride inhibits the collagenase activity of MMP-8 released by PMA-triggered polymorphonuclear leukocytes (PMNs) in a dose-dependent manner. Chlorhexidine dihydrochloride may possibly act through a cation-chelating mechanism.

Specifications

Synonyms
CHLORHEXIDINE DIHYDROCHLORIDE (EP MONOGRAPH) | Chlorhexidine dihydrochloride, European Pharmacopoeia (EP) Reference Standard | Chlorhexidine HCl | 1, 1'-Hexamethylenebis(5-(p-chlorophenyl)biguanide) dihydrochloride | NSC 756679 | CHLORHEXIDINE HYDROCHLORID
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Antiseptic effective against a wide variety of gram-negative and gram-positive organisms, used in antiseptics and dental products. Bacteriostatic and bactericidal activity due to outer bacterial membrane disruption.
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥98%
Names and Identifiers
Pubchem Sid504764827
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504764827
Canonical SmilesC1=CC(=CC=C1NC(=NC(=NCCCCCCN=C(N)N=C(N)NC2=CC=C(C=C2)Cl)N)N)Cl.Cl.Cl
IUPAC Name(1E)-2-[6-[[amino-[(E)-[amino-(4-chloroanilino)methylidene]amino]methylidene]amino]hexyl]-1-[amino-(4-chloroanilino)methylidene]guanidine;dihydrochloride
InChIKeyWJLVQTJZDCGNJN-UHFFFAOYSA-N
INCHI1S/C22H30Cl2N10.2ClH/c23-15-5-9-17(10-6-15)31-21(27)33-19(25)29-13-3-1-2-4-14-30-20(26)34-22(28)32-18-11-7-16(24)8-12-18;;/h5-12H,1-4,13-14H2,(H5,25,27,29,31,33)(H5,26,28,30,32,34);2*1H
Isomeric SMILES C1=CC(=CC=C1N/C(=N/C(=NCCCCCCN=C(/N=C(/NC2=CC=C(C=C2)Cl)\N)N)N)/N)Cl.Cl.Cl
WGK Germany 3
RTECS XA5285000
PubChem CID 9571016
Molecular Weight 578.37
Reaxy-Rn 3850979

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic nitrogen compounds
ClassOrganonitrogen compounds
SubclassGuanidines
Intermediate Tree Nodes Biguanides - Arylbiguanides
Direct Parent1-arylbiguanides
Alternative Parents Chlorobenzenes  Aryl chlorides  Propargyl-type 1,3-dipolar organic compounds  Carboximidamides  Organopnictogen compounds  Organochlorides  Imines  Hydrochlorides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents 1-arylbiguanide - Chlorobenzene - Halobenzene - Aryl chloride - Aryl halide - Monocyclic benzene moiety - Benzenoid - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Carboximidamide - Imine - Organopnictogen compound - Hydrochloride - Organohalogen compound - Organochloride - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 1-arylbiguanides. These are organonitrogen compounds containing a biguanide that is N-arylsubstituted at only the 1-position.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
VDR Tclin Vitamin D receptor (26531 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GBA1 Tclin Beta-glucocerebrosidase (14647 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
ALOX15 Tchem Arachidonate 15-lipoxygenase (7108 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CYP3A4 Tclin Cytochrome P450 3A4 (53859 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TP53 Tchem Cellular tumor antigen p53 (48468 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
POLK Tbio DNA polymerase kappa (8653 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
TDP1 Tchem Tyrosyl-DNA phosphodiesterase 1 (345557 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
USP2 Tbio Ubiquitin carboxyl-terminal hydrolase 2 (8818 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
SMN1 Tchem Survival motor neuron protein (34246 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
BLM Tchem Bloom syndrome protein (4248 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HPGD Tchem 15-hydroxyprostaglandin dehydrogenase [NAD+] (24926 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
HSPA5 Tchem 78 kDa glucose-regulated protein (3319 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
USP1 Tchem Ubiquitin carboxyl-terminal hydrolase 1 (22556 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
MEN1 Tchem Menin/Histone-lysine N-methyltransferase MLL (48157 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Cruzipain (33337 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mapk1 MAP kinase ERK2 (650 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mapt Microtubule-associated protein tau (6 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Rorc Nuclear receptor ROR-gamma (89407 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Impa1 Inositol monophosphatase 1 (16203 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

7 results found

Lot NumberCertificate TypeDateItem
D2616013Certificate of AnalysisApr 24, 2026 C113898
K2125817Certificate of AnalysisSep 08, 2025 C113898
K2125797Certificate of AnalysisSep 08, 2025 C113898
A1625241Certificate of AnalysisAug 11, 2023 C113898
F2519709Certificate of AnalysisJul 22, 2022 C113898
I2227080Certificate of AnalysisJul 22, 2022 C113898
I2227081Certificate of AnalysisJul 22, 2022 C113898
Chemical and Physical Properties
Melt Point(°C)255-262°C
Molecular Weight578.400 g/mol
XLogP3
Hydrogen Bond Donor Count8
Hydrogen Bond Acceptor Count2
Rotatable Bond Count13
Exact Mass578.154 Da
Monoisotopic Mass576.157 Da
Topological Polar Surface Area178.000 Ų
Heavy Atom Count36
Formal Charge0
Complexity648.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count2
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds2
Covalently-Bonded Unit Count3
Citations of This Product
References
1. Xinda You, Zifan Song, Youqing Tian, Ran Chen, Yuxiang Wu, Meijie Wang, Dai Shi, Shan Luo, Jiamei Sun, Yuanhui Xiao, Haixiong Liu, Hanyang Liu, Beili Lu, Lirong Tang, Xingzhong Cao, Jiande Lin, Biao Huang.  (2025)  Coordination-reconstructed cellulose membranes for precise molecular separation.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2025.125020]
Solution Calculators
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