2-Formylbenzenesulfonic acid sodium salt , 95% , 1008-72-6

Synonym(s):
2-Sulfobenzaldehyde sodium salt;Benzaldehyde-2-sulfonic acid sodium salt;Sodium 2-formyl-benzolsulfonate

CAS NO.：1008-72-6

Empirical Formula: C7H5NaO4S

Molecular Weight: 208.17

MDL number: MFCD00007478

EINECS: 213-758-4

PRODUCT Properties

• Melting point: >300°C
• Boiling point: 562.39℃[at 101 325 Pa]
• vapor pressure: 0Pa at 25℃
• storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
• solubility: H2O: soluble1g/10 mL, clear, colorless to faintly brownish-yellow
• form: Powder
• color: White to pale yellow
• Water Solubility: 1000g/L at 25℃
• BRN: 4040884
• Stability: Stable. Air sensitive. Incompatible with strong oxidizing agents.
• InChI: InChI=1S/C7H6O4S.Na/c8-5-6-3-1-2-4-7(6)12(9,10)11;/h1-5H,(H,9,10,11);/q;+1/p-1
• InChIKey: ADPUQRRLAAPXGT-UHFFFAOYSA-M
• SMILES: C1(C=O)C=CC=CC=1S([O-])(=O)=O.[Na+]
• LogP: -3.23 at 25℃

Description and Uses

2-Formylbenzenesulfonic acid sodium salt (Sodium o-sulfonate benzaldehyde) is the primary intermediate for synthesizing fluorescent whitening agent CBS, triphenylmethane dye, and moth-repellent N. Fluorescent whitening agent CBS is a new fluorescent whitening agent. It has excellent resistance to chlorine bleaching, acid and alkali resistance, and sunlight resistance. It is an ideal additive for light, textile, and daily chemical industries, mainly used in washing powders, laundry pastes, soaps, toilet soaps, and liquid detergents. Improve the performance of the product, improve the intrinsic quality and appearance quality of the product. Industrially, 2-Formylbenzenesulfonic acid sodium salt is usually obtained by sulfonating sodium sulfite in water with o-chlorobenzaldehyde as the raw material and potassium iodide as the catalyst. The catalyst can be potassium iodide, sodium iodide, and other inorganic substances containing iodide ions.

2-Formylbenzenesulfonic acid sodium salt was used as precursor to test the ability of fungal strains for transformation of phenolic and non-phenolic precursors into stable and non-toxic dyes.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319
• Precautionary statements: P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
• Risk Statements: 20/21/22
• Safety Statements: 22-24/25-36/39
• WGK Germany: 3
• HS Code: 29130000