Alpha Naphthol Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-12224
Jlab Export is a leading Alpha Naphthol Manufacturer,and suppliers in India
Alpha Naphthol (code EL-CL-12224) is 1-naphthol, the reagent behind the Molisch test, the general test for carbohydrates. Dissolved in ethanol it becomes Molisch reagent, which produces a violet ring with any carbohydrate once concentrated sulphuric acid is layered beneath the sample. The 100 g pack is made by JLab in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL745/117 |
| Chemical | 1-Naphthol (alpha-naphthol) |
| Pack size | 100 g |
| Grade | Analytical reagent |
| Documentation | MSDS included |
| Quality check | Each pack is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 3–5 working days |
| Product code | EL-CL-12224 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Carrying Out the Molisch Test
Add two drops of the alpha naphthol solution to about 2 ml of the sample solution in a test tube and mix. Tilt the tube and run concentrated sulphuric acid slowly down the inside so that it forms a separate layer underneath. A violet or purple ring where the two layers meet shows a carbohydrate.
Why Every Carbohydrate Responds
The concentrated acid dehydrates the sugar to furfural, from pentoses, or hydroxymethylfurfural, from hexoses, and this condenses with alpha naphthol to give the violet product. Sucrose, starch and other larger carbohydrates are first split by the acid into simple sugars, so they test positive as well.
Related Reagents
- Molisch Reagent — ready-made Molisch reagent for running the test straight away.
- Sulphuric Acid Concentrated — concentrated acid that forms the lower layer in the test.
- D-Glucose Powder Anhydrous — anhydrous glucose to run as a positive sample.
Other carbohydrate test chemicals are in Chemistry Lab.
Request a Quote
Buy with Add To Cart, or let us know the pack quantity and the delivery address via the contact page.
Last updated: 29 October 2026
