4-Bromo-2-(methylthio)phenol CAS 89677-55-4
| CAS No. | 89677-55-4 |
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-2-(methylthio)phenol.
CATO supplies 4-Bromo-2-(methylthio)phenol (CAS 89677-55-4), a certified reference material (molecular formula C7H7BrOS, MW 219.10 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4-Bromo-2-(methylthio)phenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.10 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 1-(5-bromo-2-methylthiophen-3-yl)ethan-1-one (CAS 1001671-82-4)
- 2-Bromo-1-(5-methylthiophen-2-yl)ethanone (CAS 10531-42-7)
- 3-Bromo-2-(methylthio)phenol (CAS 107724-66-3)
- 5-Bromo-2-ethylthiophene-3-carbaldehyde (CAS 1150223-09-8)
- 4-Bromo-N-cyclopropylthiazol-2-amine (CAS 1159816-42-8)
- 2-Bromo-1-(4-methylthiophen-2-yl)ethan-1-one (CAS 1203589-82-5)
- 5-Bromo-N-cyclopropylthiazol-2-amine (CAS 1209460-01-4)
- 2-Bromo-3-(methylthio)phenol (CAS 1243287-95-7)
Recommended Standards
- 3-Bromo-4-methoxybenzene-1-thiol (CAS 90150-97-3)
- 4-Bromo-2,5-dimethylthiophene-3-carbaldehyde (CAS 887575-78-2)
- 2-Bromo-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine (CAS 365996-07-2)
- 4-Bromo-3,5-dimethylthiophene-2-carbaldehyde (CAS 63826-91-5)
- 2-(4-Chloro-3-methylphenoxy)butanoic acid (CAS 869947-14-8)
- (S)-2-Amino-N-(3-chlorobenzyl)-N-cyclopropyl-3-methylbutanamide (CAS 1354014-88-2)
- N-(4-Methoxybenzyl)but-3-enamide (CAS 1864060-85-4)
- (Z)-Ethyl 3-(pyrrolidin-1-yl)but-2-enoate (CAS 70526-06-6)
- N-(2-(3-(Piperazin-1-ylmethyl)imidazo[2,1-b]thiazol-6-yl)phenyl)pyrazine-2-carboxamide hydrochloride (CAS 1956354-43-0)
- 11-Acetamidoundecanoic acid (CAS 106738-27-6)
- N-(4-Hydroxyphenyl)-3-(4-methoxyphenyl)acrylamide (CAS 19186-86-8)
- 1-Phenyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine (CAS 161952-26-7)
- 4-Chloro-3-propoxybenzoic acid (CAS 65136-52-9)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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