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LC3942 Metanil yellow

Reag. Ph Eur


Order number Packaging Quantity Price €
AC30942 Glass bottle 10 g 28.575


Product information
Grade Reag. Ph Eur
Synonyms 3-(4-Anilinophenylazo)benzenesulfonic acid sodium salt
Hill Formula C18H14N3NaO3S
HS Code 2927 00 00
EC number 209-608-2
Molar mass 375.38 g/mol
CAS number 587-98-4


Chemical and physical data
Solubility 25 g/l (20 °C)
Molar mass 375.38 g/mol
Bulk density 330 kg/m3
pH value 10 (10 g/l, H2O, 20 °C)


Safety information according to GHS
Hazard Statement(s) H318: Causes serious eye damage.
H412: Harmful to aquatic life with long lasting effects.
Precautionary Statement(s) P273: Avoid release to the environment.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hazard Pictogram(s)

Storage class 10 – 13 Other liquids and solids
WGK WGK 2 water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 41-52/53
Risk of serious damage to eyes.Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase S 26-39-61
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categoriesofdanger irritant, dangerous for the environment
Hazard Symbol Irritant


Toxicological data
LD 50 oral LD50 rat > 2000 mg/kg
LD 50 dermal LD50 rat > 2000 mg/kg


Description brownish-yellow powder
Transition range pH 1.2 – 2.3
Sensitivity test conforms


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10 – 13 Other liquids and solids