1-(5-Bromothiophen-2-yl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethan-1-one CAS 731840-71-4
| CAS No. | 731840-71-4 |
| Molecular Formula | C9H7BrN2OS3 |
| Molecular Weight | 335.26 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 1-(5-Bromothiophen-2-yl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethan-1-one.
1-(5-Bromothiophen-2-yl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethan-1-one (CAS 731840-71-4), molecular formula C9H7BrN2OS3 and molecular weight 335.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(5-Bromothiophen-2-yl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethan-1-one (C9H7BrN2OS3) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 335.26 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 1-(5-Bromothiophen-2-yl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethan-1-one 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 | C9H7BrN2OS3 |
| Molecular Weight | 335.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Bromothiophen Standards
- (R)-2-(4-Bromothiophen-2-yl)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2615912-71-3)
- (R)-2-(5-bromothiophen-2-yl)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2615912-72-4)
- 5-(((5-Bromothiophen-2-yl)methyl)amino)-3,3-dimethyl-5-oxopentanoic acid (CAS 1355495-20-3)
- 5-(((4-Bromothiophen-2-yl)methyl)amino)-3,3-dimethyl-5-oxopentanoic acid (CAS 1355849-31-8)
- (E)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89035-33-6)
- (Z)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 88991-51-9)
- 2-(5-Bromothiophen-2-yl)quinoline-4-carboxylic acid (CAS 351982-36-0)
- n4-((4-Bromothiophen-2-yl)methyl)-6-chloro-n4-methylpyrimidine-2,4-diamine (CAS 1252197-38-8)
Recommended Standards
- 1-(4-Bromophenyl)-3-[(4-methylphenyl)sulfanyl]propan-1-one (CAS 20618-53-5)
- 3-((4-Bromophenyl)thio)-1-(p-tolyl)propan-1-one (CAS 477334-22-8)
- 1-(4-Bromophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-06-1)
- 3-(3-Bromophenyl)-4-thiomethylpropiophenone (CAS 898782-30-4)
- 1-(Azetidin-1-yl)-2-(cyclopent-2-en-1-yl)ethan-1-one (CAS 1090947-44-6)
- N-Boc-2-(benzylamino)acetaldehyde (CAS 136159-63-2)
- 2-(6-Iodo-4-nitropyridin-2-yl)ethan-1-amine (CAS 1393531-01-5)
- 2-((5-Benzyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2-ethyl-6-methylphenyl)acetamide (CAS 332922-56-2)
- 4-(2-Bromophenyl)-2-methyl-1-(prop-2-yn-1-yl)-1H-imidazol-5-amine (CAS 1269531-62-5)
- 2-(Dimethylamino)quinoline-6-carboxylic acid (CAS 958333-03-4)
- Etoricoxib impurity 01 (CAS 646459-49-6)
- 3-Bromo-2,3,3-trifluoroprop-1-ene (CAS 220626-19-7)
- 6-Ethylindoline-2,3-dione (CAS 90924-07-5)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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