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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Hydrolysis

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Administrative data

Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study has been performed according to EC guidelines and according to GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: European Economic Community (EEC), EEC-Directive 92/69 EEC, Part C, Methods for the determination of Ecotoxicity, C.7: "Abiotic degradation: Hydrolysis as a function of pH", EEC Publication no. L383, December 1992.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
-
EC Number:
481-490-7
EC Name:
-
Molecular formula:
multi-constituent.
IUPAC Name:
5,11,17,23,29,35,41,47-octa-tert-butyl-49,50,51,52,53,54,55,56-octahydroxy-2λ⁶,8λ⁶,14λ⁶,20λ⁶,26λ⁶,32λ⁶,38λ⁶,44λ⁶-octathianonacyclo[43.3.1.1³,⁷.1⁹,¹³.1¹⁵,¹⁹.1²¹,²⁵.1²⁷,³¹.1³³,³⁷.1³⁹,⁴³]hexapentaconta-1(49),3,5,7(56),9,11,13(55),15,17,19(54),21(53),22,24,27,29,31(52),33,35,37(51),39(50),40,42,45,47-tetracosaene-2,2,8,8,14,14,20,20,26,26,32,32,38,38,44,44-hexadecone; 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrahydroxy-2λ⁶,8λ⁶,14λ⁶,20λ⁶-tetrathiapentacyclo[19.3.1.1³,⁷.1⁹,¹³.1¹⁵,¹⁹]octacosa-1(25),3,5,7(28),9,11,13(27),15(26),16,18,21,23-dodecaen-2,2,8,8,14,14,20,20-octone
Details on test material:
- Name of test material (as cited in study report): TC4ASO2
- Substance type: multi-constituent
- Physical state: white powder
- Analytical purity: 97.8%
- Composition of test material, percentage of components: 92.9% 4-tert-Butylsulfonylcalix(4)arene (CAS 204190-49-8)
4.9% 4-tert-Butylsulfonylcalix(8)arene
- Lot/batch No.: AYUI-1Y
- Expiration date of the lot/batch: 07 October 2007
- Stability under storage conditions: Stable
- Storage condition of test material: At room temperature in the dark
Radiolabelling:
no

Study design

Analytical monitoring:
yes
Details on test conditions:
Test temperature: 50°C.
Nominal test concentration: 1 mg/l

Results and discussion

Dissipation DT50 of parent compoundopen allclose all
pH:
4
Temp.:
25 °C
DT50:
> 8 760 h
pH:
7
Temp.:
25 °C
DT50:
> 8 760 h
pH:
9
Temp.:
25 °C
DT50:
> 8 760 h

Applicant's summary and conclusion