Molekula
TOOS (3-(N-Ethyl-3-methylanilino)-2-hydroxypropanesulfonic acid sodiumsalt)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
TOOS (3-(N-Ethyl-3-methylanilino)-2-hydroxypropanesulfonic acid sodium salt) is a water-soluble aniline-derived chromogenic hydrogen donor (Trinder reagent) used in peroxidase/H2O2-coupled colorimetric assays, such as glucose, cholesterol and uric acid determination, where it couples with 4-aminoantipyrine to form a colored dye. It is available with a CAS number of 82692-93-1, molecular formula C12H18NNaO4S, and molecular weight of 295.33 g/mol. Stored at ambient temperature, it carries a warning signal word. Molekula supplies TOOS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £93.30 per pack ex VAT · £111.96 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Heavy metals | ≤ 5ppm |
| pH | 6.0 - 9.5 |
| Loss on Drying | ≤ 10.9% |
| Solubility | Clear, colourless |
| Assay | ≥ 99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 60478758 |
| CAS Number | 82692-93-1 |
| IUPAC Name | sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropane-1-sulfonate |
| Molecular Formula | C12H18NNaO4S |
| Molecular Weight | 295.33 |
| Exact Mass | 295.0854 |
| SMILES | CCN(CC(CS(=O)(=O)[O-])O)C1=CC=CC(=C1)C.[Na+] |
| InChIKey | IRQRBVOQGUPTLG-UHFFFAOYSA-M |
| InChI | InChI=1S/C12H19NO4S.Na/c1-3-13(8-12(14)9-18(15,16)17)11-6-4-5-10(2)7-11;/h4-7,12,14H,3,8-9H2,1-2H3,(H,15,16,17);/q;+1/p-1 |
| PubChem CID | 23676159 |
| REACH Code | Y113 |
| HTS Code | 29221996 |
| Tariff Code | 2922190090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 3-(Ethyl(3-methylphenyl)amino)-2-hydroxy-1-propanesulfonic acid monosodium salt
- 3-(N-Ethyl-3-methylanilino)-2-hydroxypropanesulfonic acid sodium salt
- n-ethyl-n-(2-hydroxy-3-sulfopropyl)-3-methylaniline sodium salt dihydrate
- N-ETHYL-N-(2-HYDROXY-3-SULFOPROPYL)-m-TOLUIDINE
- Sodium 3-(ethyl(m-tolyl)amino)-2-hydroxypropane-1-sulfonate
- Sodium 3-(N-ethyl-3-methylanilino)-2-hydroxypropanesulfonate
- sodium 3-[ethyl(3-methylphenyl)amino]-2-hydroxypropane-1-sulfonate
- Sodium 3-[Ethyl(m-tolyl)amino]-2-hydroxy-1-propanesulfonate
- sodium;3-(N-ethyl-3-methylanilino)-2-hydroxypropane-1-sulfonate
- TOOS sodium salt
Frequently asked questions
What is TOOS used for?
TOOS is used as a chromogenic substrate (Trinder reagent) in enzymatic diagnostic and analytical assays, where it couples with 4-aminoantipyrine in peroxidase/H2O2-coupled reactions to form a colored dye, for example in glucose, cholesterol and uric acid determination.
What is the chemical formula and molecular weight of TOOS?
The formula is C12H18NNaO4S with a molecular weight of 295.33 g/mol.
How should TOOS be stored?
TOOS should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of TOOS is available from Molekula?
Molekula supplies TOOS in technical grade; custom grades may be available upon request.
Can Molekula supply TOOS in bulk?
Yes, Molekula can supply TOOS in bulk quantities; please contact sales for pricing and availability.
What documentation comes with a TOOS order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.