1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, 97%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11480293	Thermo Scientific Alfa Aesar A11439.14	25 g
11490293	Thermo Scientific Alfa Aesar A11439.22	100 g
11400303	Thermo Scientific Alfa Aesar A11439.36	500 g

Description

1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, is used as a colorimetric reagent for iron, manganese, titanium, molybdenum, and complexes of zirconium. It is used as a metal indicator. It is used for Chelate titration, colorimetry, fluorometry and masking reagent. It is used in chemical research, pharmaceutical research and as a pharmaceutical intermediate.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, is used as a colorimetric reagent for iron, manganese, titanium, molybdenum, and complexes of zirconium. It is used as a metal indicator. It is used for Chelate titration, colorimetry, fluorometry and masking reagent. It is used in chemical research, pharmaceutical research and as a pharmaceutical intermediate.

Solubility
It is readily soluble in water.

Notes
Stable under normal conditions. Keep away from strong oxidizing agents. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

Chemical Identifiers

• CAS: 270573-71-2
• Molecular Weight (g/mol): 332.205
• InChI Key: ZLRROLLKQDRDPI-UHFFFAOYSA-L
• PubChem CID: 2723960
• SMILES: C1=C(C=C(C(=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].O.[Na+].[Na+]

• Molecular Formula: C6H6Na2O9S2
• MDL Number: MFCD00007473
• Synonym: tiron monohydrate, sodium 4,5-dihydroxybenzene-1,3-disulfonate hydrate, unii-kht84q5m4r, 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate, kht84q5m4r, disodium 4,5-dihydroxybenzene-1,3-disulfonate hydrate, 1,2-dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, 1,3-benzenedisulfonicacid, 4,5-dihydroxy-, sodium salt, hydrate 1:2:1, 4,5-dihydroxybenzene-1,3-disulfonic acid, sodium salt, sodium salt, hydrate, sdd
• IUPAC Name: disodium;4,5-dihydroxybenzene-1,3-disulfonate;hydrate

Specifications

• CAS: 270573-71-2
• Molecular Formula: C6H6Na2O9S2
• Beilstein: 4629740
• Synonym: tiron monohydrate, sodium 4,5-dihydroxybenzene-1,3-disulfonate hydrate, unii-kht84q5m4r, 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate, kht84q5m4r, disodium 4,5-dihydroxybenzene-1,3-disulfonate hydrate, 1,2-dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate, 1,3-benzenedisulfonicacid, 4,5-dihydroxy-, sodium salt, hydrate 1:2:1, 4,5-dihydroxybenzene-1,3-disulfonic acid, sodium salt, sodium salt, hydrate, sdd
• InChI Key: ZLRROLLKQDRDPI-UHFFFAOYSA-L
• IUPAC Name: disodium;4,5-dihydroxybenzene-1,3-disulfonate;hydrate
• PubChem CID: 2723960
• Percent Purity: 97%

• Melting Point: >300°C
• MDL Number: MFCD00007473
• Merck Index: 14,9465
• Solubility Information: It is readily soluble in water.
• SMILES: C1=C(C=C(C(=C1S(=O)(=O)[O-])O)O)S(=O)(=O)[O-].O.[Na+].[Na+]
• Molecular Weight (g/mol): 332.205
• Formula Weight: 332.23 (314.21 Anhydrous)
• Chemical Name or Material: 1,2-Dihydroxybenzene-3,5-disulfonic acid disodium salt monohydrate

Safety and Handling

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.

P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c

H315-H319-H335

missing translation for 'einecsNumber' : 205-741-5

missing translation for 'rtecsNumber' : CZ9263000

missing translation for 'tsca' : Yes

Recommended Storage : Ambient temperatures

Product Identifier

• 1,2-Dihydroxybenzene-3,5-disulfonic aciddisodium salt monohydrate

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P312-Call a POISON CENTER/doctor/if you feel unwell.
• P332+P313-If skin irritation occurs: Get medical advice/attention.
• P337+P313-If eye irritation persists: Get medical advice/attention.

Supplemental information

• MIXTURE LIST-Contains : 1,2-Dihydroxybenzene-3,5-disulfonic aciddisodium salt monohydrate

RUO – Research Use Only