1. Tiron; CAS: 149-45-1 is a Titration indicator; Dye; Chromogenic agent; Analytical reagent compounds.
2. Product Overview
CAS 149-45-1 Sodium 3,4-dihydroxybenzene-1,5-disulfonate (Tiron) is a white to light grayish-yellow crystalline analytical reagent, mainly used as a photometric reagent, complexometric titrant, and metal masking agent for metals such as titanium, iron, and molybdenum, while also possessing metal-chelating and antioxidant properties.
3. Basic Product Information
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
structural formula:
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
Product Manager Email:crystal@coreychem.com
4. Frequently Asked Questions (FAQ)
*. What is the main purpose of Tiron?
CAS 149-45-1 Sodium 3,4-dihydroxybenzene-1,5-disulfonate (Tiron) is primarily used as a colorimetric reagent, complexometric titrant, and metal masking agent for the quantitative analysis of titanium, iron, molybdenum, and other metals, functioning through selective metal chelation and characteristic color-forming reactions.
*. How is the moisture absorption and chemical stability of this product?
Hygroscopic, sealed and moisture-proof storage is required, Solid stable at room temperature; aqueous solution is prone to oxidation and discoloration; incompatible with strong oxidants.
* Core Product Characteristics？
Broad-spectrum Metal Chelation： Specifically binds to various transition metal ions to form stable water-soluble colored complexes
Redox Activity：With catechol structure, reversible phenol-quinone transformation, free radical scavenging and oxidative stress response functions
Excellent Water Solubility：High water solubility, suitable for aqueous analysis, chromatographic detection and biological system experiments
Redox Activity: With catechol structure, reversible phenol-quinone transformation, free radical scavenging and oxidative stress response functions
* Application&Functions:
Indicator: Serves as indicator for iron complexometric titration with distinct color endpoint
Spectral research reagents: Used in spectral research of metal ion fluorescence and chemiluminescence systems
Metal Metabolism Research Tools: Specific metal chelator for research on cellular metal overload, metal toxicity and metabolic mechanism
Application Note: Only for laboratory scientific research, prohibited for clinical diagnosis, treatment and pharmaceutical use
5. Storage & Preservation
* Aqueous Solution Storage: Discard after discoloration; prepare fresh before use; short-term storage at -20 ℃ with sterile subpackaging, avoid repeated freeze-thaw cycles
* Moisture Deterioration Risk： Strong hygroscopicity; seal immediately after opening to avoid caking, purity reduction and activity loss
* Compatibility Restriction：Incompatible with strong oxidants; prohibited from co-storage, transportation and mixing
* 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.
6. Packing Size
500g or 1kg /aluminium foil bag or bottle
25kg/Fiber can
Package photo:
7. Technical Data
COA: Cas no 149 45 1 Tiron COA
MSDS: Cas no 149 45 1 Tiron MSDS
8. Contact Us
Contact person:Crystal@coreychem.com
Website: http://www.coreychem.com
