4-(Methylthio)pyrimidin-5-amine CAS 59447-73-3
| CAS No. | 59447-73-3 |
| Molecular Formula | C5H7N3S |
| Molecular Weight | 141.19 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-(Methylthio)pyrimidin-5-amine.
4-(Methylthio)pyrimidin-5-amine (CAS 59447-73-3), molecular formula C5H7N3S and molecular weight 141.19 g/mol, is a CATO reference standard with documented purity and traceability.
4-(Methylthio)pyrimidin-5-amine (C5H7N3S) contains a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; 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.
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 | C5H7N3S |
| Molecular Weight | 141.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 4-(Methylthio)pyridin-2(1H)-one (CAS 1018443-25-8)
- 3-(Methylthio)pyridin-4-ol (CAS 1243388-89-7)
- 2-(Methylthio)pyridin-4-ol (CAS 1243388-92-2)
- 2-(Methylthio)pyridin-3-ol (CAS 32637-37-9)
- 3-(Methylthio)pyrazin-2-amine (CAS 87444-50-6)
- 5-(Methylthio)-1H-pyrrole-2-carbaldehyde (CAS 90724-50-8)
- 5-(Methylthio)pyridazin-3-amine (CAS 57036-82-5)
- 5-(Methylthio)pyrimidin-2-amine (CAS 7367-94-4)
Recommended Standards
- 3-Methylthiophene-2-carboxamide (CAS 76655-99-7)
- 4,6-Dihydro-1H-thieno[3,4-c]pyrazol-3-amine (CAS 901771-45-7)
- 3-Methylthiophene-2-carbaldehyde oxime (CAS 41056-90-0)
- 4-Allyl-4H-[1,2,4]triazole-3-thiol (CAS 52231-28-4)
- 2-Ethoxy-5-fluorobenzonitrile (CAS 1158201-03-6)
- Cytochrome C (CAS 9007-43-6)
- 5-(2,3,4-Trifluorophenoxy)pentanenitrile (CAS 1443344-87-3)
- 4-Fluoro-9-(((trifluoromethyl)sulfonyl)oxy)-6,7-dihydro-5H-benzo[7]annulen-3-yl pivalate (CAS 2114341-49-8)
- 2,5-Dichloro-6-methoxy-4-methylquinoline (CAS 741233-61-4)
- 2-Amino-5-(aminomethyl)pyridine (CAS 156973-09-0)
- [3-(ethylsulfonylamino)phenyl]boronic acid (CAS 710348-41-7)
- Donepezil Impurity 60 (CAS 7216-42-4)
- Dobutamine Impurity 28 (Mixture of Diastereomers) (CAS CATO-C4X-129828)
- Peptide Impurity 82 (CAS 10491-78-8)
Why CATO?
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