Molekula
Tiron (1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt) C6H6Na2O9S2
Tiron is a chelating agent used in analytical chemistry and as a stabilizer in industrial processes. It is a disodium salt of 1,2-dihydroxybenzene-3,5-disulfonic acid, commonly employed in redox titrations and metal ion analysis. Available in powder form, it has a molecular weight of 332.22 g/mol, CAS number 149-45-1, and is stable at ambient temperatures. Store in a cool, dry place. Molekula supplies Tiron from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Tiron is a chelating agent used in analytical chemistry and as a stabilizer in industrial processes. It is a disodium salt of 1,2-dihydroxybenzene-3,5-disulfonic acid, commonly employed in redox titrations and metal ion analysis. Available in powder form, it has a molecular weight of 332.22 g/mol, CAS number 149-45-1, and is stable at ambient temperatures. Store in a cool, dry place. Molekula supplies Tiron from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Pearl crystalline powder |
| Identification | Conforms to reference |
| pH | 2.1 - 2.7 |
| Assay | ≥97.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 58661995 |
| CAS Number | 149-45-1 |
| Molecular Formula | (OH)2C6H2(SO3Na)2 · H2O |
| Molecular Weight | 332.22 |
| SMILES | [Na].O=S(=O)(O)C1=CC(O)=C(O)C(=C1)S(=O)(=O)O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29089990 |
| Tariff Code | 2908990000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- 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
For research and industrial use only
Documents
Safety Data Sheets (SDS)
Available in US, IT, FR, ES, DE, EN.
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US - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · US · 195 KB
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IT - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · IT · 195 KB
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FR - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · FR · 198 KB
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ES - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · ES · 197 KB
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DE - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · DE · 196 KB
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EN - (58661995) TIRON (1,2-DIHYDROXYBENZENE-3,5-DISULFONIC ACID DISODIUM SALT) C6H6NA2O9S2 [149-45-1].pdf
SDS · EN · 194 KB
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
No alternate names recorded for this product.
Frequently asked questions
What is Tiron used for?
Tiron is primarily used as a chelating agent and antioxidant, especially in analytical chemistry and as a stabilizer in polymer formulations.
What is the chemical formula and molecular weight of Tiron?
The formula is C6H6Na2O9S2, and the molecular weight is 332.22 g/mol.
How should Tiron be stored?
Tiron should be stored at ambient temperature, protected from moisture and light.
What grade of Tiron is available?
Molekula supplies Tiron in analytical grade, suitable for laboratory and research applications.
Can Molekula supply Tiron in bulk?
Yes, Molekula can supply Tiron in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Tiron order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
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.