1,1,2-Trimethyl-1H-benzo[e]indole-7-sulfonic acid CAS 113995-55-4
| CAS No. | 113995-55-4 |
| Molecular Formula | C15H15NO3S |
| Molecular Weight | 289.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1,2-Trimethyl-1H-benzo[e]indole-7-sulfonic acid (CAS 113995-55-4), a certified reference material (molecular formula C15H15NO3S, MW 289.35 g/mol) for analytical method development and quality control.
Structurally, 1,1,2-Trimethyl-1H-benzo[e]indole-7-sulfonic acid (C15H15NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 289.35 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 1,1,2-Trimethyl-1H-benzo[e]indole-7-sulfonic acid 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 | C15H15NO3S |
| Molecular Weight | 289.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Trimethyl Standards
- 1,1,2-Trimethyl-1H-benzo[e]indole-6-sulfonic acid (CAS 146384-40-9)
- 1,2,2-Trimethyl-3-(p-tolylcarbamoyl)cyclopentane-1-carboxylic acid (CAS 197236-38-7)
- 1,2,2-Trimethyl-3-(o-tolylcarbamoyl)cyclopentane-1-carboxylic acid (CAS 889877-82-1)
- 2,4,6-Trimethyl-N-(p-tolyl)benzenesulfonamide (CAS 305849-20-1)
- 2,4,6-Trimethyl-N-(5-propyl-1,3,4-thiadiazol-2-yl)benzamide (CAS 685847-14-7)
- 1,7,7-Trimethyl-3-(4-dimethylamino)benzylidene(2,2,1)-bicyclo-2-heptanone (CAS 52793-84-7)
- N,3,5-Trimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 2379364-87-9)
- Trimethyl(3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)silane (CAS 1111096-43-5)
Recommended Standards
- 5,6-Diphenyl-3-thioxo-2,3-dihydropyridazine-4-carbonitrile (CAS 112450-34-7)
- 2-Amino-5-Cbz-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine (CAS 1141669-69-3)
- Methyl 5-(4-ethylbenzoyl)-2-methylthiazole-4-carboxylate (CAS 1105193-72-3)
- 1-(2-((1,1-Dioxidotetrahydrothiophen-3-yl)amino)-2-oxoethyl)cyclopentane-1-carboxylic acid (CAS 1154571-54-6)
- Ethyl 2-bromo-2-(5-chloro-2-methoxyphenyl)acetate (CAS 1050481-79-2)
- N-Acetyl-L-histidine (monohydrate) (CAS 39145-52-3)
- N1-Cycloheptyl-N2-(2,4-difluorophenyl)oxalamide (CAS 898356-92-8)
- 2-(2-Hydroxyethoxy)ethyl Benzoate (CAS 20587-61-5)
- 2,2,2-Trifluoro-1-(6-hydroxy-2,2-dimethylquinolin-1(2H)-yl)ethanone (CAS 828938-86-9)
- 1-Methyluric Acid-[13C4,15N3] (CAS 1173022-91-7)
- 4-Acetamido Antipyrine-d3 (CAS 342821-66-3)
- 4-Bromo-2,2-dimethyltetrahydro-2H-pyran (CAS 1339437-32-9)
- 2-(3,4-Dimethoxyphenyl)ethyl N-(3-methoxythiophen-2-yl)carbamate (CAS 477845-96-8)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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