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Indigo carmine (C.I. 73015), 25 g

≥80 %, p.a.
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
i may cause an allergic skin reaction
P280 P302+P352 P333+P313
i wear protective gloves/eye protection, IF ON SKIN: Wash with plenty of water/..., if skin irritation or rash occurs: Get medical advice/attention
Pack Qty.
Indigotine, E 132
Empirical formula C16H8N2Na2O8S2
Molar mass (M) 466,36 g/mol
Density (D) 0,714 g/cm³
Flash point (flp) >250 °C
Melting point (mp) >340 °C
CAS No. 860-22-0
EG-Nr. 212-728-8

Indicator pH 11,5-13,0
Dissolve 0.25 g in 100 ml ethanol (50 %) or 1 g in 100 ml water

€33.25/Pack Qty. 

excl. VAT. | 25 g per Pack Qty.

Art. No. 2700.1

In stock
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from 24 Pack Qty. €29.92/Pack Qty.

Product details

Indigo carmine (C.I. 73015) ≥80 %, p.a.

Technical Information
Colour conversion blue - yellow 
Transition range pH 11,5 - 14,0 
Indigo carmine (C.I. 73015)
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Art. No. Pack Qty. Pack. Price Quantity
2700.1 25 g glass


2700.2 100 g glass


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General information

Indicators and Dyes

Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.

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Guarantee analysis

Appearancedark blue to purple powder
Dye content≥80 %
Loss on drying≤5 %
Heavy metals (as Pb)≤0,004 %
Arsenic (As)≤0,0008 %
Cadmium (Cd)≤0,0001 %
Mercury (Hg)≤0,0001 %