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Tiron

CAS NO.：149-45-1

Purity: ≥80%
Appearance: Off-white to light brown powder
Product Manager Email: crystal@coreychem.com

Product Name:	Tiron
Synonyms:	1,3-Benzenedisulfonicacid,4,5-dihydroxy-,disodiumsalt;3,5-disulfocatecholdisodiumsalt;3-benzenedisulfonicacid,4,5-dihydroxy-disodiumsalt;4,5-dihydroxy-m-benzenedisulfonicacidisodiumsalt;
CAS:	149-45-1
MF:	C6H7NaO8S2
MW:	294.22
EINECS:	205-741-5
Product Categories:	Aromatic Phenols
Melting point	300 °C
density	2.064g/cm3 at 20℃
bulk density	465kg/m3
vapor pressure	0Pa at 25℃
storage temp.	Store at +15°C to +25°C.
solubility	1350g/l
Appearance	Off-white to light brown powder
PH	5.0 (10g/l, H2O, 20℃)
Water Solubility	soluble
Sensitive	Hygroscopic
λmax	290-291 nm (buffer pH 2.5)
Stability:	Stable. Incompatible with strong oxidizing agents.
HS code	2908999090
Transport Information	Non-hazardous goods

Frequently Asked Questions：
1. What is the main purpose of Tiron?
Primarily used as a reagent for photometric determination, complexometric titration, and metal masking of metals such as titanium, iron, and molybdenum, it also possesses metal chelating and antioxidant properties.
2. What are the key physical or chemical properties?
This product relatively stable physical properties in solid state, but there are two key unstable factors: it is prone to absorb moisture and the aqueous solution will oxidize and change color and lose effectiveness over time.
3. How to store and what are the storage suggestions?
Storage method: For solids, they should be sealed and stored in a cool, dry place at room temperature (15-25℃), avoiding moisture absorption and strong light; after being prepared as a water solution, it should be divided and sealed, stored at -20℃ for about 1 month. It is recommended to prepare and use it immediately.
Key advice: The biggest storage risk of this substance is moisture absorption and oxidation and color change of the water solution. The water solution must be divided and frozen, avoiding repeated freezing and thawing. Before use, check if the solution is colorless and transparent; if it has changed color, it should be discarded.
4. Annual production capacity, batch production capacity, purity standard?
This product meets a 80% purity, test result is about 85%, we also have AR grade standard, annual output can reach tens of thousands of tons.
5. COA
Cas no 149-45-1 Tiron COA
6. MSDS
Cas no 149-45-1 Tiron MSDS

Application 1: Core purpose and function:
Mainly used as reagents for the photometric determination of metal ions in the field of analytical chemistry, as well as complexing titrants and metal masking agents. At the same time, it also plays an antioxidant and metal chelating role in biomedical research.
Application 2: analytical chemistry (the most traditional and core application):
Absorption measurement (colorimetric analysis): Forms characteristic colored complexes with metal salts such as titanium, iron, molybdenum, manganese, cerium, and zirconium, used for quantitative detection of trace metals.
Complex titration indicators: Used as metal indicators in the complex titration of iron.
Metal maskers: Mask interfering ions in complex systems to improve analytical selectivity.
HPLC auxiliary reagents: Used for the determination of trace metals such as iron, titanium, osmium, and aluminum by high-performance liquid chromatography.
Fluorescent probes: Recently, it has been studied to use them as green fluorescent probes for the total determination of Fe²⁺/Fe³⁺ in water, with a detection limit of up to 0.015 mg/L.
Application 3: What is the main use of this product in the pharmaceutical field?
In biomedical research, it is mainly used as a “metal chelator + antioxidant/ free radical scavenger”, and is applied in studies on oxidative stress, metal overload, inflammation, apoptosis and nanotoxicology, etc. However, it is only suitable for scientific research and cannot be used as a drug or for therapeutic purposes.
Kindly reminder: In the field of biomedicine, Tiron is only used as a research reagent. All related products are labeled as “For research use only. Not for diagnostic or therapeutic purposes.”

Packing size:
5kg/aluminium foil bag
25kg/Fiber can
Packing photo:

Storage temp：
The solid should be stored in a sealed, cool and dry place at room temperature (15-25℃), avoiding moisture absorption and strong light. After being dissolved in water, it should be divided and sealed, and stored at -20℃ for about 1 month. It is recommended to prepare it immediately and use it promptly.
Expiration date：
Solid can be stored for 24months.