Technical Data Sheet
Methyl orange (C.I. 13025), 250 g
ACS, for microscopy
H301
toxic if swallowed
P270 P301+P310 P405
do not eat, drink or smoke when using this product, IF SWALLOWED: Immediately call a POISON CENTER/doctor, store locked up
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4-(Dimethylamino)-azobenzene-4'-sulphonic acid sodium salt, Orange III
Empirical formula C14H14N3NaO3S
Molar mass (M) 327,4 g/mol
Melting point (mp) >300 °C
ADR 6.1 III
WGK 1
CAS No. 547-58-0
EG-Nr. 208-925-3
UN-Nr. 3143
Molar mass (M) 327,4 g/mol
Melting point (mp) >300 °C
ADR 6.1 III
WGK 1
CAS No. 547-58-0
EG-Nr. 208-925-3
UN-Nr. 3143
Indicator pH 3.2-4.4
Dissolve 0.04 g in 100 ml of ethanol (20 %) or 0.4 g in 100 ml of water
Dissolve 0.04 g in 100 ml of ethanol (20 %) or 0.4 g in 100 ml of water
Azo dye, low soluble in water (5 g/l).
Ingredient of trichrom stains used for detection of connective tissue.
Ingredient of trichrom stains used for detection of connective tissue.
€81.60/Pack Qty.
excl. VAT. | 250 g per Pack Qty.
Art. No. T118.3
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€77.52/Pack Qty.
from 24 Pack Qty.
€73.44/Pack Qty.
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Product details
Methyl orange (C.I. 13025) ACS, for microscopy
Azo dye, low soluble in water (5 g/l).
Ingredient of trichrom stains used for detection of connective tissue.
Technical Information
Colour conversion | pink - yellow |
Transition range pH | 3,2 - 4,4 |
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Methyl orange (C.I. 13025)
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Art. No. | Pack Qty. | Pack. | Price | Quantity | |
---|---|---|---|---|---|
T118.1 | 50 g | glass |
€36.05 |
|
|
T118.2 | 100 g | glass |
€52.60 |
|
|
T118.3 | 250 g | glass |
€81.60 |
|
|
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Downloads / MSDS
General information
Indicators and Dyes
Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.
Certificates of Analysis
Guarantee analysis
Appearance | orange powder |
Appearance of solution | complies |
pH-transition range | 3.2 (pink)- 4.4 (yellow) |
Loss on drying (110 °C) | ≤3.0 % |