6-(Methylthio)isothiazolo[3,4-d]pyrimidin-3-amine CAS 55441-30-0
| CAS No. | 55441-30-0 |
| Molecular Formula | C6H6N4S2 |
| Molecular Weight | 198.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-(Methylthio)isothiazolo[3,4-d]pyrimidin-3-amine is closely related to a nitrile group, sulfur-containing functionality, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6-(Methylthio)isothiazolo[3,4-d]pyrimidin-3-amine (CAS 55441-30-0) is a high-purity analytical reference standard with the molecular formula C6H6N4S2 and a molecular weight of 198.27 g/mol.
Owing to a nitrile group, sulfur-containing functionality, an aromatic ring system, 6-(Methylthio)isothiazolo[3,4-d]pyrimidin-3-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 198.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 6-(Methylthio)isothiazolo[3,4-d]pyrimidin-3-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H6N4S2 |
| Molecular Weight | 198.27 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Methylthio Standards
- 2-(Methylthio)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 176530-46-4)
- 2-(Methylthio)thieno[2,3-d]pyrimidin-4(1H)-one (CAS 309976-36-1)
- 6-Methyl-2-(methylthio)-5-propylpyrimidin-4(1H)-one (CAS 59144-22-8)
- [4-(Methylthio)phenoxy]acetic Acid (CAS 15267-49-9)
- 4-ethyl-2-(methylthio)pyrimidine-5-carboxylic acid (CAS 188937-14-6)
- [2-(Methylthio)phenoxy]acetic Acid (CAS 3395-40-2)
- Ethyl 2-(methylthio)pyrimidine-4-carboxylate (CAS 250726-39-7)
- Methyl 2-(6-(methylthio)pyrimidin-4-yl)acetate (CAS 946422-10-2)
Recommended Standards
- 5-Hydrazino-3-thien-2-yl-1,2,4-thiadiazole (CAS 306936-74-3)
- 6-methyl-1-(propan-2-yl)-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 5494-83-7)
- 5-Ethyl-[1,3]dithiolo[4,5-b]pyrazin-2-one (CAS 80458-32-8)
- N-carbamimidoyl-4-ethylpiperazine-1-carboximidamide (CAS 203194-74-5)
- (S)-N-((2-Oxo-3-(4-(pyridin-4-yl)phenyl)oxazolidin-5-yl)methyl)acetamide (CAS 128311-86-4)
- Ethyl 2-amino-3-hydroxy-2-methylpropanoate (CAS 78843-72-8)
- (4S)-6-methoxy-3,4-dihydro-2H-1-benzopyran-4-amine hydrochloride (CAS 1392218-75-5)
- Ethyl 3,6-dichloro-2-(difluoromethoxy)phenylacetate (CAS 1803717-84-1)
- 4-Amino-N-ethyl-2-(piperazin-1-yl)pyrimidine-5-carboxamide (CAS 105161-82-8)
- 2-Bromo-2-(6-chlorophenyl)cyclohexanol-d4 (1.0mg/ml in Acetonitrile) (CAS 1795011-67-4)
- Procyanidin B4 (CAS 29106-51-2)
- 2-(5-Bromo-2-chlorophenyl)-3-methylimidazo[1,2-a]pyridine (CAS 2304668-95-7)
- 2-Bromo-6-((pentylamino)methyl)phenol (CAS 1247199-53-6)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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