Dabsyl-L-tryptophan CAS 97685-00-2
| CAS No. | 97685-00-2 |
| Molecular Formula | C25H25N5O4S |
| Molecular Weight | 491.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 491.56 g/mol gives Dabsyl-L-tryptophan distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dabsyl-L-tryptophan (CAS 97685-00-2) is a high-purity analytical reference standard with the molecular formula C25H25N5O4S and a molecular weight of 491.56 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Dabsyl-L-tryptophan is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 491.56 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.
As a certified reference material (CRM), Dabsyl-L-tryptophan 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 | C25H25N5O4S |
| Molecular Weight | 491.56 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Dabsyl Standards
- Dabsyl-L-methionine (CAS 97684-99-6)
- Dabsyl-L-leucine (CAS 89131-12-4)
- Dabsyl-L-valine (CAS 89131-11-3)
- Dabsyl-L-proline (CAS 89131-09-9)
- Dabsyl-L-alanine (CAS 89131-10-2)
- Dabsyl Chloride (CAS 56512-49-3)
- Lys(Dabsyl)-(Asn670,Leu671)-Amyloid b/A4 Protein Precursor770-Gln-Lucifer Yellow (M-2570.0500) (CAS 1802078-42-7)
Recommended Standards
- (2Z)-3-[4-(Benzyloxy)phenyl]-2-{4-[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl]-1,3-thiazol-2-yl}prop-2-enenitrile (CAS 866019-81-0)
- Methyl 2-(4-(dimethylamino)benzylidene)-5-(4-(methoxycarbonyl)phenyl)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 612078-93-0)
- AZD-7624, >98% (HPLC) (CAS 1095004-78-6)
- N-(2,4-Dimethoxyphenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477330-22-6)
- 2-ethyl-2-(3-methoxyphenyl)pyrrolidine (CAS 301335-01-3)
- N-(4,5-dimethylthiazol-2-yl)cyclopropanecarboxamide (CAS 352702-87-5)
- 2-(4-Methoxyphenyl)isoindolin-1-imine (CAS 27408-86-2)
- 2-Bromo-1-(4-chloropyridin-3-yl)ethan-1-one (CAS 237385-97-6)
- N-(3-Cyanophenyl)picolinamide (CAS 795284-35-4)
- (R)-(-)-1-Cyclohexylethyl isocyanate, 94% (CAS 93470-26-9)
- 4-Fluoro-3-methylbenzene-1,2-diamine hydrochloride (CAS 1161426-63-6)
- N-(4-fluoro-2-methylbenzyl)ethanamine (CAS 1248091-26-0)
- Mesalazine EP Impurity Q (CAS 3970-35-2)
- DAPK Substrate Peptide (CAS 386769-53-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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