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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
phototransformation in soil
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Unsuitable test system. In aqueous solution, Chlorhexidine digluconate dissociates to the chlorhexidine base and the gluconate.Therefore the information obatined with Chlorhexidine digluconate is relevant for the assessment of Chlorhexidine base.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Environmental Hazard Profile of Organic Chemicals; An Experimental Method for the Assessment of the Behaviour of Organic Chemicals in the Ecosphere by Means of Simple Laboratory Tests with 14C Labelled Chemicals
Author:
Freitag D, Ballhorn L, Geyer H, Korte F
Year:
1985
Bibliographic source:
Chemosphere 14 (10), 1589-1616
Reference Type:
publication
Title:
Ecotoxicological Profile Analysis; VII. Screening Chemicals for Their Environmental Behaviour by Comparative Evaluation
Author:
Freitag D, Geyer H, Kraus A, Viswanathan R, Kotzias D, Attar A, Klein W, Korte F
Year:
1982
Bibliographic source:
Ecotoxicol. Environ. Saf. 6, 60-81

Materials and methods

Principles of method if other than guideline:
Irradiation of substance adsorbed to silica gel
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
D-gluconic acid, compound with N,N''-bis(4-chlorophenyl)-3,12-diimino-2,4,11,13-tetraazatetradecanediamidine (2:1)
EC Number:
242-354-0
EC Name:
D-gluconic acid, compound with N,N''-bis(4-chlorophenyl)-3,12-diimino-2,4,11,13-tetraazatetradecanediamidine (2:1)
Cas Number:
18472-51-0
IUPAC Name:
N',N'''''-hexane-1,6-diylbis[N-(4-chlorophenyl)(imidodicarbonimidic diamide)] - D-gluconic acid (1:2)
Details on test material:
Chlorhexidine digluconate (Ring-U-14C-labelled, specific activity: 9.1 Curie/mol; purity: 99 % by radio-TLC)
Radiolabelling:
yes

Study design

Light source:
other: UV lamp
Light spectrum: wavelength in nm:
>= 290
Duration of test at given test condition
Temp.:
15 °C

Results and discussion

% Degradation
% Degr.:
20
Sampling time:
17 h

Applicant's summary and conclusion