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Methyl orange (C.I. 13025), 50 g

ACS, for microscopy
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Examples of effect: In smaller quantities, lead to immediate serious damage to health or death. Safety: Do not inhale, touch or swallow. Wear work safety equipment. Call a poison control centre or doctor immediately. Recovery position.
i toxic if swallowed
P270 P301+P310 P405
i do not eat, drink or smoke when using this product, IF SWALLOWED: Immediately call a POISON CENTER/doctor, store locked up
Pack Qty.
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
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

Azo dye, low soluble in water (5 g/l).

Ingredient of trichrom stains used for detection of connective tissue.
Product details

€36.05/Pack Qty. 

excl. VAT. | 50 g per Pack Qty.

Art. No. T118.1

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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 
Methyl orange (C.I. 13025)
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Art. No. Pack Qty. Pack. Price Quantity
T118.1 50 g glass


T118.2 100 g glass


T118.3 250 g glass


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Selected quantity:   0
  1. Subtotal:  0.00

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General information

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Guarantee analysis

Appearanceorange powder
Appearance of solutioncomplies
pH-transition range3.2 (pink)- 4.4 (yellow)
Loss on drying (110 °C)≤3.0 %