5-Acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid CAS 25317-20-8
| CAS No. | 25317-20-8 |
| Molecular Formula | C18H15N3O8S2 |
| Molecular Weight | 465.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid (CAS 25317-20-8), a certified reference material (molecular formula C18H15N3O8S2, MW 465.46 g/mol) for analytical method development and quality control.
Structurally, 5-Acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid (C18H15N3O8S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 465.46 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-Acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic 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 | C18H15N3O8S2 |
| Molecular Weight | 465.46 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Acetamido Standards
- 3-Acetamido-N-(5-chloro-4-((4-chlorophenyl)(cyano)methyl)-2-methylphenyl)-4-methylbenzamide (CAS 1158623-26-7)
- (S)-2-Acetamido-N-((S)-1-amino-3-(5-hydroxy-1H-indol-3-yl)-1-oxopropan-2-yl)-3-(5-hydroxy-1H-indol-3-yl)propanamide (CAS 71338-67-5)
- 2-Acetamido-2-deoxy-N-[N-(benzyloxycarbonyl)-ε-aminocaproyl]-β-D-glucopyranosylamine (CAS 56146-89-5)
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- ((S)-2-Acetamido-3-(4-(bis(2-chloroethyl)amino)phenyl)propanoyl)-L-leucine (CAS 347400-96-8)
- (2-Acetamido-3-(4-(bis(2-chloroethyl)amino)phenyl)propanoyl)-L-leucine (CAS 6754-85-4)
- Methyl 5-acetamido-4-7-8-9-tetra-O-acetyl-2-6-anhydro-3-5-dideoxy-D-glycero-D-galacto-non-2-enonate (CAS 73960-72-2)
Recommended Standards
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- Acetic acid 4,5-diacetoxy-6-acetoxymethyl-3-[(4-methoxy-benzylidene)-amino]-tetrahydro-pyran-2-yl ester (CAS 7597-81-1)
- 2-Demethyl Colchicine 2-O-Sulfate (CAS 1391052-56-4)
- N,N,N-Trimethyl-1-(oxiran-2-yl)methanaminium acetate (CAS 34890-37-4)
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- 3-Amino-4-hydroxyquinoline-2-carboxylic acid (CAS 58401-44-8)
- tert-Butyl 2-(4-((2-chloro-4-fluorobenzyl)-oxy)phenylsulfonamido)acetate (CAS 1206677-71-5)
- 1-(oxan-2-yl)cyclobutane-1-carboxylic acid (CAS 2060063-21-8)
- 3-[(4-Methoxyphenyl)methyl]-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 338777-25-6)
- Boc-Glu(OBzl)-ONp (CAS 7536-59-6)
- 6-(Morpholine-4-carbonyl)cyclohex-3-ene-1-carboxylic acid (CAS 478040-26-5)
- Peptide T (CAS 106362-32-7)
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