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1,3-Dihydroxynaphthalene, 98%, Thermo Scientific Chemicals
Description
It is used in the naphthoresorcinol test for uronic acids of Tollens and Rorive, a blue color can be extracted with ethanol after heating of uronic acids with naphthoresorcinol in hydrochloric acid. It is also employed as a reagent for various medical tests. It can also be used as a spot test reagent for glycerate.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
It is used in the naphthoresorcinol test for uronic acids of Tollens and Rorive, a blue color can be extracted with ethanol after heating of uronic acids with naphthoresorcinol in hydrochloric acid. It is also employed as a reagent for various medical tests. It can also be used as a spot test reagent for glycerate.
Solubility
Soluble in ethanol (50 mg/ml), and water.
Notes
Light Sensitive. Store away from oxidizing agents and bases. Keep the container tightly closed in a cool, dry and well ventilated place.

Specifications
Specifications
Melting Point | 123°C to 126°C |
Quantity | 5 g |
Beilstein | 2044002 |
Sensitivity | Light sensitive |
Merck Index | 14,6396 |
Solubility Information | Soluble in ethanol (50mg/ml),and water. |
SMILES | C1=CC=C2C(=C1)C=C(C=C2O)O |
Molecular Weight (g/mol) | 160.172 |
Formula Weight | 160.17 |
Percent Purity | 98% |
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Certificates
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
X08K002 | Certificate of Analysis | 18/10/2024 | A17739.06,A17739.03 |
10250598 | Certificate of Analysis | 07/08/2024 | A17739.06,A17739.03 |
M05K017 | Certificate of Analysis | 18/01/2024 | A17739.06,A17739.03 |
10244068 | Certificate of Analysis | 13/10/2022 | A17739.06,A17739.03 |
10237854 | Certificate of Analysis | 12/04/2022 | A17739.06,A17739.03 |
Safety and Handling

- 1,3-Naphthalenedio
- Warning
- Acute toxicity Category 4
- Serious eye damage/eye irritation Category 2
- Skin corrosion/irritation Category 2
- Specific target organ toxicity Category 3
- H302-Harmful if swallowed.
- H315-Causes skin irritation.
- H319-Causes serious eye irritation.
- H335-May cause respiratory irritation.
- P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P312-IF SWALLOWED: Call a POISON CENTER or doctor/physician/ if you feel unwell.
- P302+P352-IF ON SKIN: Wash with plenty of water/soap.
- P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P332+P313-If skin irritation occurs: Get medical advice/attention.
- P337+P313-If eye irritation persists: Get medical advice/attention.
- MIXTURE LIST-Contains : 1,3-Naphthalenediol
RUO – Research Use Only
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