4-Hydroxy-5-methyl-2-mercaptopyrimidine
- CAS NO.：636-26-0
- Empirical Formula: C5H6N2OS
- Molecular Weight: 142.18
- MDL number: MFCD00009777
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:57
What is 4-Hydroxy-5-methyl-2-mercaptopyrimidine?
Chemical properties
white crystalline powder
General Description
White crystalline solid.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
4-Hydroxy-5-methyl-2-mercaptopyrimidine is heat sensitive and may be light sensitive.
Fire Hazard
Flash point data for 4-Hydroxy-5-methyl-2-mercaptopyrimidine are not available. 4-Hydroxy-5-methyl-2-mercaptopyrimidine is probably combustible.
Properties of 4-Hydroxy-5-methyl-2-mercaptopyrimidine
| Melting point: | 283-286°C |
| Density | 1.36 |
| refractive index | 1.6430 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | pKa 7.71 (Uncertain) |
| color | White to Almost white |
| Water Solubility | 509mg/L(25 ºC) |
| BRN | 120488 |
| Stability: | Stable but may be heat or light sensitive. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 636-26-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 4(1H)-pyrimidinone, 2,3-dihydro-5-methyl-2-thioxo-(636-26-0) |
| EPA Substance Registry System | 5-Methyl-2-thiouracil (636-26-0) |
Safety information for 4-Hydroxy-5-methyl-2-mercaptopyrimidine
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Hydroxy-5-methyl-2-mercaptopyrimidine
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