Sodium 7,7'-azanediylbis(4-hydroxy-3-(phenyldiazenyl)naphthalene-2-sulfonate) CAS 5001-72-9
| CAS No. | 5001-72-9 |
| Molecular Formula | C32H21N5O8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 7,7'-azanediylbis(4-hydroxy-3-(phenyldiazenyl)naphthalene-2-sulfonate) (CAS 5001-72-9), molecular formula C32H21N5O8S2Na and molecular weight 690.66 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Sodium 7,7'-azanediylbis(4-hydroxy-3-(phenyldiazenyl)naphthalene-2-sulfonate) is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 690.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C32H21N5O8S2 2*Na |
| Molecular Weight | 690.66 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Sodium Standards
- 2,2'-(Azanediylbis(propane-3,1-diyl))bis(isoindoline-1,3-dione) (CAS 102202-87-9)
- 3,3'-Azanediylbis(propan-1-ol) hydrochloride (CAS 102878-91-1)
- 2,2'-Azanediylbis(n-ethylacetamide) (CAS 1156376-98-5)
- 2,2'-Azanediylbis(n-(2-ethylphenyl)acetamide) hydrochloride (CAS 1171636-61-5)
- 4,4'-Azanediylbis(1-aminoanthracene-9,10-dione) (CAS 128-87-0)
- 1,1'-(Azanediylbis(methylene))bis(cyclopentan-1-ol) hydrochloride (CAS 1311316-84-3)
- 1,1'-(Azanediylbis(methylene))bis(cyclopentan-1-ol) (CAS 1311569-65-9)
- 5,5'-(Azanediylbis(methylene))bis(pyridin-2-ol) hydrochloride (CAS 1356110-11-6)
Recommended Standards
- Alpha-Carotene (CAS 432-70-2)
- Methyl 1,5-bis(4-bromophenyl)-2-methyl-1H-pyrrole-3-carboxylate (CAS 881041-74-3)
- Methyl 3-(4-{[(tert-butoxy)carbonyl]amino}phenyl)propanoate (CAS 318510-90-6)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1S)-1-phenylethyl]acetamide (CAS 955975-71-0)
- 1,1'-Bis(di-i-propylphosphino)ferrocene 97239-80-0 1,1'-BIS(DI-I-PROPYLPHOSPHINO)FERROCENE;1,1'-BIS(DIISOPROPYLPHOSPHINO)FERROCENE;BIS[(DIISOPROPYLPHOSPHINO)CYCLOPENTADIENYL]IRON;D-I-PRPF;DIPPF SC11315 (CAS 97239-80-0)
- Chloro(crotyl)(tri-tert-butylphosphine)palladium(II) (CAS 1334497-00-5)
- 3,4-Dihydro-7-[4-[4-(4-methoxyphenyl)-1-piperazinyl]butoxy]-2(1H)-quinolinone (CAS 1314032-20-6)
- Methyl 6-bromo-2-fluoro-3-hydroxybenzoate (CAS 1807032-97-8)
- Relugolix Impurity 169 (CAS CATO-C4X-2429169)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
Why CATO?
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