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Merck
CN

1111001

USP

Chlorhexidine

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

1,1′-Hexamethylenebis[5-(4-chlorophenyl)biguanide]

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About This Item

Linear Formula:
[-(CH2)3NHC(=NH)NHC(=NH)NHC6H4Cl]2
CAS Number:
55-56-1
Molecular Weight:
505.45
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329749152
MDL number:
MFCD00009673
Beilstein/REAXYS Number:
2826432

Key Documents

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Product Name

Chlorhexidine, United States Pharmacopeia (USP) Reference Standard

InChI key

GHXZTYHSJHQHIJ-UHFFFAOYSA-N

InChI

1S/C22H30Cl2N10/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)

SMILES string

Clc1ccc(NC(=N)NC(=N)NCCCCCCNC(=N)NC(=N)Nc2ccc(Cl)cc2)cc1

grade

pharmaceutical primary standard

API family

chlorhexidine

manufacturer/tradename

USP

mp

134-136 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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Other Notes

Sales restrictions may apply.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

pictograms

CorrosionEnvironment
GHS05,GHS09

signalword

Danger

hcodes

H318,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

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