4-Sulfo-L-phenylalanine CAS 34023-49-9
| CAS No. | 34023-49-9 |
| Molecular Formula | C9H11NO5S |
| Molecular Weight | 245.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Sulfo-L-phenylalanine 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.
4-Sulfo-L-phenylalanine (CAS 34023-49-9), molecular formula C9H11NO5S and molecular weight 245.25 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, 4-Sulfo-L-phenylalanine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 245.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C9H11NO5S |
| Molecular Weight | 245.25 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulfo Standards
- Sulfo-NHS-Acetate (CAS 152305-87-8)
- 4-Oxo-8-sulfo-1,4-dihydroquinoline-3-carboxylic acid (CAS 876303-40-1)
- 5-Sulfo-nicotinic acid (CAS 4833-92-5)
- 5-Sulfo-1,2,4-benzenetricarboxylic acid (CAS 51307-74-5)
- 2-[2-Sulfo(ethyl-d4)]pseudourea (CAS 1346602-43-4)
- Sulfo-Succinimidyl-4-hydroxybenzoate (CAS 223593-91-7)
- Sulfo-aceticacidethylester (CAS 89124-45-8)
- Sulfo-MBS (m-Maleimidobenzoyl-N-hydroxysulfosuccinimide ester), 95% (CAS 103848-62-0)
Recommended Standards
- 4-Oxo-4H,5H-thieno[3,2-c]quinoline-2-carboxylic acid (CAS 950258-81-8)
- 5-(1,3-benzothiazol-2-yl)-2-furoic acid (CAS 32277-89-7)
- 4-Methyl-3-nitrobenzyl methanesulfonate (CAS 348165-80-0)
- 5-(Pyrrolidine-1-sulfonyl)furan-2-carboxylic acid (CAS 933690-52-9)
- 31930-36-6 Ethyl cis-3-Iodoacrylate I0502 cis-3-Iodoacrylic Acid Ethyl Ester (CAS 31930-36-6)
- (+)-Aphidicolin (CAS 38966-21-1)
- 2-(2-(3-Cyclohexylureido)thiazol-4-yl)-N-(thiophen-2-ylmethyl)acetamide (CAS 921470-46-4)
- Quinapril Isopropyl Ester Analog (CAS 955034-25-0)
- 1,1'-((Ethane-1,2-diylbis(azanediyl))bis(ethane-2,1-diyl))bis(2-amino-1H-imidazol-4(5H)-one) (CAS 98690-32-5)
- Ethyl 6-(difluoromethyl)pyridine-2-carboxylate (CAS 1804934-02-8)
- benzyl 3,5-diallyl-4-oxopiperidine-1-carboxylate (CAS CATO-C3D-262418)
- 5-Ethylnonan-1-ol (CAS 137008-30-1)
- 3-(4-(Trifluoromethyl)phenyl)pyrrolidine (CAS 1000198-76-4)
- Neuropeptide Y (1-24) amide (human, rat) (CAS 131448-51-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com