(((9H-Fluoren-9-yl)methoxy)carbonyl)cysteine CAS 157355-77-6
| CAS No. | 157355-77-6 |
| Molecular Formula | C18H17NO4S |
| Molecular Weight | 343.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (((9H-Fluoren-9-yl)methoxy)carbonyl)cysteine (CAS 157355-77-6), a certified reference material (molecular formula C18H17NO4S, MW 343.40 g/mol) for analytical method development and quality control.
(((9H-Fluoren-9-yl)methoxy)carbonyl)cysteine (C18H17NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), (((9H-Fluoren-9-yl)methoxy)carbonyl)cysteine 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 | C18H17NO4S |
| Molecular Weight | 343.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related H Standards
- (9H-Fluoren-9-yl)methyl (3-formylphenyl)carbamate (CAS 206537-34-0)
- (9H-Fluoren-9-yl)methyl (4-formylphenyl)carbamate (CAS 475160-85-1)
- (9H-Fluoren-9-yl)methyl (1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl)carbamate (CAS 873783-24-5)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-fluorobutanoic acid (CAS 1690528-34-7)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-fluorobutanoic acid (CAS 2260936-15-8)
- (9H-fluoren-9-yl)methyl (4-(aminomethyl)phenyl)carbamate (CAS 1140067-27-1)
- (9H-Fluoren-9-yl)methyl 4-aminobenzylcarbamate (CAS 159790-81-5)
- (9H-Fluoren-9-yl)methyl (4-hydroxybenzyl)carbamate (CAS 106864-36-2)
Recommended Standards
- O-Methyl (4-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)benzyl)carbamothioate (CAS 147821-57-6)
- Benzyl 2-(2-((methylsulfonyl)oxy)-ethyl)morpholine-4-carboxylate (CAS 1648864-39-4)
- Methyl 5-bromo-2-(bromomethyl)-6-chloronicotinate (CAS 1447958-78-2)
- Isopropyl naphthalen-1-ylcarbamate (CAS 16827-25-1)
- 5-Chloro-2-iodo-3-methylbenzoic acid (CAS 1383706-84-0)
- 1-(Bicyclo[2.2.1]heptan-2-ylmethyl)-4-bromo-1h-pyrazol-3-amine (CAS 1559140-52-1)
- Prepro-Atrial Natriuretic Factor (56-92) (human) trifluoroacetate salt (CAS 112199-06-1)
- 1-Bromo-4-chloro-3-fluoro-2-(methylsulfanyl)benzene (CAS 1628524-92-4)
- 5-(((4-Bromophenyl)amino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 187278-01-9)
- Maltotetraitol (CAS 66767-99-5)
- Methyl 2-Fluoro-4-iodobenzoate (CAS 204257-72-7)
- 4-(3-Chloro-5-fluorophenyl)-4-oxobutanoic acid (CAS 845790-47-8)
- (4-Fluoro-2-(trifluoromethoxy)phenyl)methanol (CAS 1242252-68-1)
- Cholecystokinin Octapeptide (sulfated) (H-2060.0005) (CAS 25679-23-6)
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