Ethyl 2-amino-3-mercaptopropanoate CAS 69685-04-7
| CAS No. | 69685-04-7 |
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 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 Ethyl 2-amino-3-mercaptopropanoate.
Ethyl 2-amino-3-mercaptopropanoate (CAS 69685-04-7), molecular formula C5H11NO2S and molecular weight 149.21 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 2-amino-3-mercaptopropanoate (C5H11NO2S) contains an amide group, a sulfone group, a carboxylic acid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C5H11NO2S |
| Molecular Weight | 149.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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- 3-Amino-2-methyltetrahydrothiophene 1,1-dioxide (CAS 1808381-02-3)
- (R)-3-Amino-3-methyltetrahydrothiophene 1,1-dioxide (CAS 1932799-68-2)
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- 3-Amino-4-methyltetrahydrothiophene 1,1-dioxide (CAS 744140-95-2)
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Recommended Standards
- DL-4-Thiaisoleucine (CAS 443-80-1)
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- 1-(3,4-diethoxyphenyl)propan-1-one (CAS 720-66-1)
- 5-Amino-2-fluoro-n,n-dimethylbenzene-1-sulfonamide (CAS 1094853-59-4)
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- 3-(4-Fluorophenyl)-5-(trifluoromethyl)pyridine (CAS 1214329-49-3)
- 1-methylpiperazine-2,6-dione, trifluoroacetic acid (CAS 1803609-86-0)
- Dithiobis(methylcarbamic acid)bis(2,3-dihydro-2,2-dimethyl-7-benzofuranyl)ester (CAS 39995-74-9)
- 2-Amino-4-cyclopropoxy-N-methylnicotinamide (CAS 1243281-95-9)
- 5-((5-Amino-4-((3-amino-3-phenylpropyl)amino)pyridin-2-yl)amino)pyrazine-2-carbonitrile (CAS 1137476-48-2)
- 4-Bromo-6-fluoroquinolin-3-amine (CAS 2167224-92-0)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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