Naphthalene-1,3,7-trisulfonic acid CAS 85-49-4
| CAS No. | 85-49-4 |
| Molecular Formula | C10H8O9S3 |
| Molecular Weight | 368.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 368.36 g/mol gives Naphthalene-1,3,7-trisulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Naphthalene-1,3,7-trisulfonic acid (CAS 85-49-4) is a high-purity analytical reference standard with the molecular formula C10H8O9S3 and a molecular weight of 368.36 g/mol.
Structurally, Naphthalene-1,3,7-trisulfonic acid (C10H8O9S3) contains a carbohydrate-derived structure, a sulfone group. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 368.36 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Naphthalene-1,3,7-trisulfonic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H8O9S3 |
| Molecular Weight | 368.36 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 3 |
Related Naphthalene Standards
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Recommended Standards
- N-(6-Amino-3-methyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)-2-(1-fluoro-4-phenylcyclohexa-2,4-dien-1-yl)acetamide (CAS 695153-95-8)
- Tris(2-methoxyphenyl)phosphineoxide (CAS 47467-89-0)
- Diphenyl-3-isopropylphenyl phosphate (CAS 69515-46-4)
- 231957-54-3 824VSI942Y MIV 150 1-(5-cyanopyridin-2-yl)-3-((1S,2S)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl)urea PC 815 MIV-150 UNII-824VSI942Y (CAS 231957-54-3)
- 18-Hydroxy Corticosterone (CAS 561-65-9)
- D-erythro-Dihydro-D-sphingosine-1-phosphate (CAS 108126-32-5)
- 3-(2-Bromo-5-fluorophenyl)propanenitrile (CAS 1057676-39-7)
- 1-tert-butyl-N-(4-fluorobenzyl)hydrazinecarbothioamide (CAS 721418-90-2)
- 2-Chloro-1-(4-(1-phenylethyl)piperazin-1-yl)ethan-1-one hydrochloride (CAS 1052550-94-3)
- 2-((5-(4-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(p-tolyl)acetamide (CAS 336174-90-4)
- (S)-2-((2S,3R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-hydroxy-4-phenylbutanamido)-4-methylpentanoic acid (CAS 1225383-33-4)
- (2-Chloro-1,1-difluoroethyl)benzene (CAS 55805-08-8)
- 1,3-Dimethylpiperazine (CAS 22317-01-7)
- Endo-[Glu]31-Liraglutide (CAS CATO-C4X-199234)
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