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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: As mention below
Principles of method if other than guideline:
On basis of visual perceptual / Olfactory property
GLP compliance:
no
Specific details on test material used for the study:
- Name of test material (IUPAC name): 4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid
- Molecular formula: C11H11NO4S
- Molecular weight: 253.2769 g/mol
- Smiles notation: CNc1ccc2cc(cc(c2c1)O)S(=O)(=O)O
- InChl: 1S/C11H11NO4S/c1-12-8-3-2-7-4-9(17(14,15)16)6-11(13)10(7)5-8/h2-6,12-13H,1H3,(H,14,15,16)
- Substance type: Organic
- Physical state: Solid
Physical state at 20°C and 1013 hPa:
solid
Key result
Form:
solid: particulate/powder
Colour:
Light brown
Odour:
other: No detail available
Substance type:
organic
Conclusions:
On the basis of physical observation and using the sense of smell, 4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid was observed to be a light brown powder.
Executive summary:

On the basis of physical observation and using the sense of smell, 4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid was observed to be a light brown powder.

Description of key information

On the basis of physical observation and using the sense of smell, 4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid was observed to be a light brown powder.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

On the basis of physical observation and using the sense of smell, 4-hydroxy-6-(methylamino)naphthalene-2-sulfonic acid was observed to be a light brown powder.