54558-79-1 4-Methylsulfanyl-2-nitro-benzoic acid MFCD19981472 CAS 54558-79-1
| CAS No. | 54558-79-1 |
| Molecular Formula | C8H7NO4S |
| Molecular Weight | 213.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
54558-79-1 4-Methylsulfanyl-2-nitro-benzoic acid MFCD19981472 (CAS 54558-79-1), molecular formula C8H7NO4S and molecular weight 213.21 g/mol, is a CATO reference standard with documented purity and traceability.
54558-79-1 4-Methylsulfanyl-2-nitro-benzoic acid MFCD19981472 (C8H7NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7NO4S |
| Molecular Weight | 213.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylsulfanyl Standards
- 3-(methylsulfanyl)-2-nitrobenzoic acid (CAS 1548867-26-0)
- 2-(Methylsulfanyl)-5-nitrobenzoic acid (CAS 70290-38-9)
- 4-(Methylsulfanyl)-3-nitrobenzoic acid (CAS 64399-24-2)
- 5-(Methylsulfanyl)-2-nitrobenzoic acid (CAS 68701-32-6)
- 1-Methyl-1-[3-(methylsulfanyl)phenyl]thiourea (CAS 1421606-02-1)
- 2-[4-(methylsulfanyl)phenoxy]propanoic acid (CAS 3364-90-7)
- (4-Methyl-2-methylsulfanyl-6-oxo-1,6-dihydro-pyrimidin-5-yl)-acetic acid 860760-44-7 (CAS 860760-44-7)
- 2-(Methylsulfanyl)-6-(1H-pyrrol-1-yl)benzonitrile (CAS 862595-53-7)
Recommended Standards
- 1H-indol-3-yl hydrogen sulfate 3-Indoxyl sulfate 3-Indoxylsulfuric acid 3-indolyl hydrogen sulfate 3-indolyl sulfate 487-94-5 CHEBI:43355 Indican Indol-3-yl sulfate Indoxyl sulfic acid Indoxylsulfuric acid indol-3-yl hydrogen sulfate indol-3-yl sulphate indoxyl sulfate indoxyl sulphate indoxyl-3-sulphate (CAS 487-94-5)
- Edoxaban Impurity 107 (CAS CATO-C4X-1063107)
- Zonisamide Related Compound A (CAS 342623-49-8)
- Edoxaban Impurity 113 (CAS CATO-C4X-1063113)
- tert-butyl (5S)-5-methyl-1,4-diazepane-1-carboxylate (CAS 1260619-37-1)
- tert-Butyl 4,4-dimethyl-7-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 453560-80-0)
- 2-((1-Isopropyl-1H-pyrazol-5-yl)amino)benzoic acid (CAS 183151-32-8)
- [(2E)-3-phenylprop-2-en-1-yl](prop-2-en-1-yl)amine (CAS 86386-72-3)
- N-(2,5-dimethylphenyl)-2-(3-formyl-1H-indol-1-yl)acetamide (CAS 592546-20-8)
- 2-(4-Chloro-3-formylphenyl)acetonitrile (CAS 1822963-05-2)
- 2h-Furo[2,3-c]pyran-2-one (CAS 857054-03-6)
- 4-Allyl-5-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 205806-31-1)
- N-Nitroso Clarithromycin-13C D3 (CAS CATO-C4X-100233)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com