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1-Naphthol, 50 g

≥99 %, p.a.
Icon_EVE-EUD Please consider that this product might be liable to some legal sanctions as for example to obtain an end user declaration or the prohibition of some applications. For details please do contact your counterpart in our sales department!
Examples of effect: Damage metals and burn body tissues; may cause serious eye damage. Safety: Avoid contact; wear safety spectacles and gloves. In the event of contact with eyes and skin, rinse with water.
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 harmful if swallowed, toxic in contact with skin, causes skin irritation, causes serious eye damage, may cause respiratory irritation
P280 P302+P352 P305+P351+P338 P310
i wear protective gloves/eye protection/face protection, IF ON SKIN: Wash with plenty of soap and water, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing, immediately call a POISON CENTER/doctor
Pack Qty.
1-Hydroxynaphthalene, α-Naphthol
Empirical formula C10H8O
Molar mass (M) 144,17 g/mol
Density (D) 1,28 g/cm³
Boiling point (bp) 280 °C
Flash point (flp) 125 °C
Melting point (mp) 96 °C
CAS No. [90-15-3]
EG-Nr. 201-969-4
UN-Nr. 2811

Reagent for carbohydrates.

€42.90/Pack Qty. 

excl. VAT. | 50 g per Pack Qty.

Art. No. KK14.1

In procurement
from 6 Pack Qty. €40.76/Pack Qty.
from 24 Pack Qty. €38.61/Pack Qty.
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Order No. Pack Qty. Pack. Price Quantity
KK14.1 50 g glass


KK14.2 100 g glass


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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.

Molisch’s test:

Molisch’s reagent is added to a diluted sample of monosaccharide and concentrated sulphuric acid is added down the sides of the test tube to form a layer beneath the solution. A purple ring forms at the interface between the layers. Since nucleic acids and glycoproteins also contain monosaccharides, they may react as well.

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Assay (GC)≥99,0 %
Sulphated ash≤0,05 %
Chloride (Cl)≤0,005 %
Iron (Fe)≤0,001 %
Heavy metals (as Pb)≤0,001 %
Water (KF)≤0,2 %

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