Naphthalene-1,2,3,4-tetraone dihydrate CAS 34333-95-4
| CAS No. | 34333-95-4 |
| Molecular Formula | C10H4O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 206.15 g/mol gives Naphthalene-1,2,3,4-tetraone dihydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Naphthalene-1,2,3,4-tetraone dihydrate (CAS 34333-95-4), molecular formula C10H4O4H2O and molecular weight 206.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Naphthalene-1,2,3,4-tetraone dihydrate (C10H4O4H2O) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 206.15 g/mol, it falls into the medium-molecular-weight range. 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 | C10H4O4 2*H2O |
| Molecular Weight | 206.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Naphthalene Standards
- 3-(Naphthalene-2-sulfonamido)propanoic acid (CAS 100394-14-7)
- Naphthalene-2-sulfonohydrazide (CAS 10151-46-9)
- Naphthalene-1,3,5-trisulfonic acid, sodium salt(1:1) (CAS 104768-26-5)
- Sodium naphthalene-1,3,5-trisulfonate (CAS 10533-44-5)
- Naphthalene-1,3(2H,4H)-dione (CAS 105801-86-3)
- 1-(Naphthalene-2-carbonyl)piperazine hydrochloride (CAS 1093630-38-6)
- 5,5'-(Naphthalene-2,6-diyl)diisophthalic acid (CAS 1119195-95-7)
- 5,5'-(Naphthalene-1,4-diyl)diisophthalic acid (CAS 1119196-01-8)
Recommended Standards
- (S)-1-(2-(Diphenylphosphino)naphthalen-1-yl)isoquinoline (CAS 149341-33-3)
- 2-Azabicyclo[2.2.1]hept-5-ene-3-carboxylic acid (CAS 1367697-62-8)
- n-(2,2-Dichloroethenyl)acetamide (CAS 34243-54-4)
- Methyl 3-(4-formylphenyl)picolinate (CAS 920510-95-8)
- 6-Chloro-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261936-34-8)
- CAS 885277-81-6 (CAS 885277-81-6)
- Methyl 1-(2,2-difluoroethyl)-4-iodo-1H-pyrazole-3-carboxylate (CAS 1798775-93-5)
- Methyl 1-benzyl-5,5-difluoropiperidine-3-carboxylate (CAS 1356338-67-4)
- (1S)-4-Fluoro-2,3-dihydro-1H-inden-1-amine (CAS 946053-90-3)
- D-[Ser]11-Semaglutide (CAS CATO-CPTD788629)
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