Sodium 4-Hydroxybenzoate CAS 114-63-6
| CAS No. | 114-63-6 |
| Molecular Formula | C7H5O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Sodium 4-Hydroxybenzoate 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.
Sodium 4-Hydroxybenzoate (CAS 114-63-6), molecular formula C7H5O3Na and molecular weight 160.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Sodium 4-Hydroxybenzoate (C7H5O3Na) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 160.10 g/mol, it falls into the medium-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.
Physical & Chemical Properties
| Molecular Formula | C7H5O3 Na |
| Molecular Weight | 160.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Sodium Standards
- Methyl 2-Hydroxybenzoate-3,4,5,6-d4 (CAS 1219802-12-6)
- Benzyl 2-Hydroxybenzoate-3,4,5,6-d4 (CAS 1219802-40-0)
- Benzyl 4-Hydroxybenzoate-2,3,5,6-d4 (CAS 1219805-81-8)
- Methyl 3-Hydroxybenzoate (CAS 19438-10-9)
- Butyl 2-hydroxybenzoate (CAS 2052-14-4)
- Propyl 4-hydroxybenzoate-ring-13C6 (CAS 2075718-26-0)
- Phenyl 3-hydroxybenzoate (CAS 24262-63-3)
- Methyl 4-hydroxybenzoate potassium (CAS 26112-07-2)
Recommended Standards
- 2-(Aminomethyl)-3-bromo-6-(difluoromethyl)pyridine-5-acetonitrile (CAS 1805450-83-2)
- 2'-Isopropyl-[1,1'-biphenyl]-3-thiol (CAS 1443306-03-3)
- 4-(Dimethylamino)-3-hydroxy-N,N-dimethylbenzamide (CAS 1243408-63-0)
- 4-(6-Fluoropyridin-3-yl)-1-isopropyl-1H-indole-3-carbaldehyde (CAS 1350760-33-6)
- 3-Chloro-N-(3-chlorophenyl)-6-methylbenzo[b]thiophene-2-carboxamide (CAS 332382-25-9)
- 4-Acetyl-8-benzyl-1-thia-4,8-diazaspiro[4.5]Decane-3-carboxylic acid hydrochloride (CAS 1030253-99-6)
- 1-(3-Bromo-4-methoxyphenyl)-2,2,2-trifluoroethan-1-one (CAS 122243-36-1)
- 3-(Difluoromethoxy)pyridin-4-amine (CAS 1491229-71-0)
- L-Theanine (CAS 3081-61-6)
- Peptide 441 (CAS CATO-CPTD788441)
Why CATO?
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