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LC2294 Dimethylyellow (C.I. 11020)


Order number Packaging Quantity Price €
AC29294 Glass bottle 10 g 31.05


Product information
Synonyms Dimethyl yellow, Solvent yellow 2, Methyl yellow
Hill Formula C14H15N3
HS Code 2927 00 00
EC number 200-455-7
Molar mass 225.29 g/mol
CAS number 60-11-7


Chemical and physical data
Solubility (20 °C) practically insoluble
Melting point 110 – 116 °C (decomposition)
Molar mass 225.29 g/mol
Bulk density 190 kg/m3
pH value ca.5 – 7 (10 g/l, H2O, 20 °C) (filtered slurry)


Safety information according to GHS
Hazard Statement(s) H301: Toxic if swallowed.
H351: Suspected of causing cancer.
Precautionary Statement(s) P281: Use personal protective equipment as required.
Signal Word Danger
Hazard Pictogram(s)
Storage class 6.1A Combustible substances, toxic
WGK WGK 3 highly water endangering
Disposal 9
Carcinogenic compounds and flammable compounds labelled “Highly toxic” or “Toxic”: container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).


Safety information
R Phrase R 25-40
Toxic if swallowed.Limited evidence of a carcinogenic effect.
S Phrase S 36/37-45
Wear suitable protective clothing and gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger toxic, carcinogenic
Hazard Symbol




Transport information
Declaration (transport by sea) IMDG-Code UN 2811 TOXIC SOLID, ORGANIC, N.O.S.(4-(DIMETHYLAMINO)-AZOBENZENE), 6.1, III
Declaration (transport by air) IATA-DGR UN 2811 TOXIC SOLID, ORGANIC, N.O.S.(4-(DIMETHYLAMINO)-AZOBENZENE), 6.1, III


Toxicological data
LD 50 oral LD50 rat 200 mg/kg


Identity (UV/VIS-Spectrum) passes test
Melting point 110 – 116 °C
Transition range pH 3.0 – pH 4.0 Pink – brownish-yellow
Absorption maximum λ 1 (buffer pH 3.0) 508 – 511 nm
Absorption maximum λ 2 (buffer pH 4.0) 455 – 460 nm
Absorption maximum λ 3 (Ethanol) 403 – 407 nm
Spec. Absorptivity A 1%/1cm (λ37m7ax; 0.005 g/l; ethanol; calc. on dried substances) 1100 – 1300
Loss on drying (40 °C; ≤ 1 hPa) ≤ 5 %