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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
additional toxicological information
Adequacy of study:
other information

Data source

Reference
Title:
No information
Author:
Nakashima, Y. et al.: Studies on the absorption, excretion,|distribution and metabolism of|(2-acetyllactoyloxyethyl)trimethylammonium|1,5-naphthalenedisulfonate (TM-723). Oyo Yakuri 18, 723-748|(1979)

Materials and methods

Type of study / information:
Type: other: absorption, excretion

Test material

Constituent 1
Chemical structure
Reference substance name:
Naphthalene-1,5-disulphonic acid
EC Number:
201-317-9
EC Name:
Naphthalene-1,5-disulphonic acid
Cas Number:
81-04-9
Molecular formula:
C10H8O6S2
IUPAC Name:
naphthalene-1,5-disulfonic acid
impurity 1
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
Water
impurity 2
Chemical structure
Reference substance name:
Sulphuric acid
EC Number:
231-639-5
EC Name:
Sulphuric acid
Cas Number:
7664-93-9
Molecular formula:
H2O4S
IUPAC Name:
sulfuric acid
Test material form:
solid
Details on test material:
Purity: 74.7 % (w/w)
water content: 21,7 % (w/w)
sulforic acid contnent 2,7 % (w/w)

Test material content is 74,7 % Naphthalene-1,5-disulfonic acid; based on the water content and the production process it must be assumed that the substance is isolated as Naphthalene-1,5-disulfonic acid tetrahydrat CAS: 211366-30-2 (theoretical content 80 % (w/w) and water content 20 % (w/w). Additional moisture and some remaining sulforic acid from isolation by centrifuge decrease the content of the test substance to 74,7 % (w/w) Naphthalene-1,5-disulfonic acid.

Results and discussion

Applicant's summary and conclusion