DIMETHYL YELLOW

DIMETHYL YELLOW pH Indicator grade

C.I.No.11020
p-Dimethylaminoazobenzene, 4-Dimethylaminoazobenzene, N,N-Dimethyl-4-phenylazoaniline, N,N-Dimethyl-4-aminoazobenzene, Butter Yellow, Solvent Yellow 2

Article No.

03430

Grade

pH Indicator grade

Purity

CAS No.

60-11-7

Molecular Formula

C₁₄H₁₅N₃

Molecular Weight

225.30

H.S. Code

2927.0090

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

Physical Properties

Physical state at 20 °C

Solid

Colour

Yellow powder

Melting point/ Freezing point [°C]

111 °C

Packings

25 g (00025)
100 g (00100)

Specifications

Appearance	Yellow to orange brown powder
Melting point	110 - 116°C
Transition range pH 2.9 to pH 4.0	Red to yellow
Appearance of solution	0.1% solution in ethanol is clear
Absorption maxima in ethanol	403 - 407 nm
Specific absorptivity A 1%/1cm (λmax; 0.005%; ethanol; calculated on dried substance)	1100 - 1300
Loss on drying (40°C; 1 hpa)	Max. 5.0%

Safety Information and Hazard Symbols

Symbol: GHS06, GHS08
Signal Word: Danger
UN No.: 2811
IMCO Class No.: 6.1
Packing Group: III
Hazardous Statement: H301-H351
Precaution Statement: P281-P301 + P310

Revision Date : 07-Jun-2019

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