3,4,5-Trimethoxybenzoyl isothiocyanate CAS 6939-63-5
| CAS No. | 6939-63-5 |
| Molecular Formula | C11H11NO4S |
| Molecular Weight | 253.27 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.
3,4,5-Trimethoxybenzoyl isothiocyanate (CAS 6939-63-5) is a high-purity analytical reference standard with the molecular formula C11H11NO4S and a molecular weight of 253.27 g/mol.
3,4,5-Trimethoxybenzoyl isothiocyanate (C11H11NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
CATO manufactures 3,4,5-Trimethoxybenzoyl isothiocyanate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H11NO4S |
| Molecular Weight | 253.27 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Trimethoxybenzoyl Standards
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- 2,4,5-Trimethoxybenzoyl chloride (CAS 42833-66-9)
- 2,4,6-Trimethoxybenzoyl chloride (CAS 42833-84-1)
- 1-(3,4,5-Trimethoxybenzoyl)piperazine (CAS 53342-13-5)
- (2S)-2-[(3,4,5-Trimethoxybenzoyl)-amino]propanoic acid (CAS 93709-67-2)
- 3-Methyl-1-(3,4,5-trimethoxybenzoyl)piperazine (CAS 1240564-32-2)
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- 1-(3,4,5-Trimethoxybenzoyl)-1,4-diazepane (CAS 99822-56-7)
Recommended Standards
- 3-(Furan-2-carboxamido)-4-methyl-4,5-dihydrothiophene-2-carboxylic acid (CAS 392244-43-8)
- 3-Cyano-3-(3-fluorophenyl)propiophenone (CAS 898788-82-4)
- 3-(4-Fluorophenyl)-1-phenyl-1H-pyrazol-5-amine (CAS 72411-53-1)
- 3-Cyano-3-(4-fluorophenyl)propiophenone (CAS 898767-98-1)
- 1-Ethyl-2-(3-methoxyphenyl)-6-oxopiperidine-3-carboxylic acid (CAS 917748-62-0)
- 2-Cyclopropyl-5-methyloxazole-4-carboxylic acid (CAS 1249240-92-3)
- (R)-2-(1,3-bis(benzyloxy)-1,3-dioxopropan-2-yl)-4-methylpentanoic acid (CAS 155947-71-0)
- 6-Aminohexan-3-ol hydrochloride (CAS 1354952-86-5)
- 4-Bromo-6,8-dichloro-2-methylquinoline (CAS 1070879-65-0)
- Benzo[d][1,3]dioxol-5-ylhydrazine hydrochloride (CAS 40483-63-4)
- (m-Tolylsulfonyl)-L-proline (CAS 1038410-49-9)
- N-[3-(Dimethylamino)propyl]-4-(2-ethylbutanoyl)-1H-pyrrole-2-carboxamide (CAS 478259-82-4)
- 2-Fluoro-4-methoxy-5-methylbenzaldehyde (CAS 1781804-90-7)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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