Rare speciality dyes and metallic salts, made to exact specification.
SPA Corporation supplies difficult-to-synthesise acridine and biological dyes, and high-purity mercury, silver, bismuth, selenium and tungsten salts, for laboratories and industry in India and abroad.
Speciality Dyes
All speciality dyes
Acriflavine HydrochlorideCAS 69235-50-3
Proflavine HemisulphateCAS 1811-28-5
Gentian VioletCAS 548-62-9
Methylene Blue (Ultra High Pure)CAS 7220-79-3
Fluorescein SodiumCAS 518-47-8
Eosin YCAS 17372-87-1- Malachite Green OxalateCAS 2437-29-8
Metallic Salts
All metallic salts
Increasing access to rare chemicals through fair prices and assured quality.
Many of the compounds we make are needed in small, exacting quantities and have few reliable sources anywhere. Buyers often face long lead times, inconsistent purity or a single overseas supplier.
SPA Corporation was built to close that gap. We synthesise and purify these materials in-house, test every batch against its specification, and pack it for safe travel to laboratories, distributors and industry in India and overseas.
Six segments, one standard of purity
A focused range, made well. Highlighted products are our flagship lines. Open a segment to see every product in it, with CAS numbers.
Acridine · Xanthene · Thiazine dyesAcridine Dyes & Biological Stains
Acridine, xanthene, thiazine and triarylmethane dyes for microscopy, microbiology staining, aquaculture and research.
- Acriflavine HCl
- Acriflavine Neutral
- Proflavine Hemisulphate
- Gentian Violet
- Methylene Blue (Ultra High Pure)
- Methylene Blue
- Fluorescein Sodium
- Eosin Y
- Malachite Green
- Brilliant Green
- Merbromin
- Toluidine Blue
- Bromothymol Blue
- Auramine O
Mercury Compounds
A broad range of inorganic and organic mercury compounds, in LR, AR and extra-pure grades.
- Mercuric Chloride
- Calomel
- Mercuric Iodide
- Mercuric Oxide Red & Yellow
- Mercuric Sulphate
- Ammoniated Mercury
- Mercuric Sulphide Red
- Mercuric Acetate
- Mercuric Bromide
- Mercurous Nitrate
- Mercuric Thiocyanate
- Phenyl Mercuric Acetate & Nitrate
- Mercury Metal 99.99%
Silver Compounds
High-purity silver salts for analytical chemistry, plating, catalysis, photography and cloud seeding.
- Silver Nitrate 99.9%
- Silver Oxide
- Silver Sulphate
- Silver Iodide
- Silver Chloride
- Silver Nitrate, commercial grade
Bismuth, Selenium & Tungsten
Oxides, sulfides and metals of the rarer elements, for electronics, glass and ceramics, pigments and catalysts.
- Bismuth Oxide
- Bismuth Metal
- Sodium Bismuthate
- Selenium Sulfide
- Selenium Metal
- Tungsten Trioxide
Cobalt, Lithium & Molybdenum
Battery, plating, pigment and micronutrient grades, supplied in lab packs and bulk drums.
- Cobalt Metal
- Cobalt Carbonate
- Cobalt Oxide
- Cobalt Sulfate
- Cobalt Nitrate
- Lithium Carbonate
- Sodium Molybdate
Laboratory Reagents & Fine Chemicals
Analytical reagents, iodine chemistry and antioxidants for testing labs, institutions and industry.
- Dimethylglyoxime
- Iodine
- Iodoform
- Potassium Iodide
- Potassium Iodate
- Sodium Thiosulphate
- Potassium Thiocyanate
- EDTA Disodium
- Resorcinol
- BHA · BHT · TBHQ
The molecules we are known for
These dyes are hard to synthesise at consistent purity, and few suppliers offer them at all. We produce them in-house and keep them in regular supply.
| Product | CAS No. | Assay | Grades |
|---|---|---|---|
| Acriflavine HydrochlorideProduct page → | 69235-50-3 | 98.5–105.0% | Extra pure |
| Acriflavine NeutralProduct page → | 8048-52-0 | 95.0–105.0% | Extra pure |
| Proflavine HemisulphateProduct page → | 1811-28-5 | Spec on request | Extra pure |
 Gentian Violet (Crystal Violet)Product page → | 548-62-9 | 96.0–100.5% | Extra pure |
| Methylene Blue (Ultra High Pure)Product page → | 7220-79-3 | 97.0–103.0% | Ultra high pure |
| Fluorescein SodiumProduct page → | 518-47-8 | Spec on request | Extra pure |
| Eosin YProduct page → | 17372-87-1 | Spec on request | Extra pure |
| Malachite Green OxalateProduct page → | 2437-29-8 | Spec on request | Extra pure |
Trusted by customers in 18 countries across six continents
Our speciality dyes and metallic salts are shipped from India to laboratories, distributors and industry around the world.
- Countries
- 18
- Continents
- 6
- Exports
- IEC registered
Asia
- INIndiaHome market
- CNChina
- THThailand
- LKSri Lanka
- ILIsrael
- LBLebanon
- SASaudi Arabia
Europe
- GBUnited Kingdom
- DEGermany
- NLNetherlandsAmsterdam
- ITItaly
North America & Caribbean
- USUnited States
- CACanada
- TTTrinidad and Tobago
South America
- PEPeru
Africa
- LYLibya
- GHGhana
Oceania
- AUAustralia
Where our chemicals go to work
Research & academic labs
Reagents and stains for universities, institutes and R&D centres.
DMG · Mercuric chloride · IodineMicroscopy & staining
Biological stains for microbiology and histology laboratories.
Gentian violet · Methylene blueAquaculture
Dyes trusted by fish farms and the ornamental fish trade.
Acriflavine · Malachite greenAnalytical & testing
AR-grade salts for titration, COD analysis and quality control.
Mercuric sulphate · Silver sulphateElectroplating
Metal salts for plating baths and surface finishing.
Silver nitrate · Cobalt sulfateGlass, ceramics & pigments
Oxides and carbonates for glazes, frits and colourants.
Bismuth oxide · Cobalt carbonateBatteries & electronics
High-purity materials for cells, sensors and electronic components.
Silver oxide · Lithium carbonateCoatings & polymers
Catalysts, preservatives and antioxidants for paints and plastics.
PMN · BHT · TBHQBuying from SPA Corporation
Quick answers for laboratories, distributors and procurement teams.
Ask us something elseWhat does SPA Corporation supply?
Speciality dyes and biological stains, including acridine dyes such as Acriflavine and Proflavine, mercury, silver, bismuth, selenium and tungsten salts, cobalt, lithium and molybdenum salts, and laboratory reagents.
Do you supply customers outside India?
Yes. We hold an Import Export Code and supply customers in 18 countries across six continents, including the United States, Canada, the United Kingdom, Germany, Italy, the Netherlands, China and Australia.
Which grades do you offer?
Depending on the product, we supply Laboratory Reagent (LR), Analytical Reagent (AR), Extra Pure and Ultra High Pure grades. Share your own specification and we will confirm whether we can meet it.
What documents come with an order?
Specification sheets, material safety data sheets and technical data sheets are available for each product. Tell us which documents you need and we will send them with your quote.
What pack sizes are available?
From sealed 25 g laboratory bottles up to 50 kg bulk packs, depending on the product. Tell us your preferred pack size when you enquire.
How do I get a price?
Send the product, grade and quantity through the quote form, by email or on WhatsApp. We will confirm price, availability, lead time and the documents you need.
Can you supply a product that is not listed?
Ask us. Our range keeps growing, and we can tell you quickly whether we can supply it. Include the product name, CAS number and the specification you need.
Need a speciality chemical made right?
Tell us the product, grade and quantity. We will confirm price, availability and lead time.