4-Hydroxy-5-methyl-2-mercaptopyrimidine Structure

4-Hydroxy-5-methyl-2-mercaptopyrimidine

Chemical Properties

Melting point 283-286°C
Density  1.36
refractive index  1.6430 (estimate)
storage temp.  Sealed in dry,Room Temperature
pka pKa 7.71 (Uncertain)
form  powder to crystal
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.
InChI InChI=1S/C5H6N2OS/c1-3-2-6-5(9)7-4(3)8/h2H,1H3,(H2,6,7,8,9)
InChIKey ZLAQATDNGLKIEV-UHFFFAOYSA-N
SMILES C1(=S)NC=C(C)C(=O)N1
CAS DataBase Reference 636-26-0(CAS DataBase Reference)
EWG's Food Scores 1
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

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P305+P351+P338
Hazard Codes  Xi
Risk Statements  22-40-36/37/38
Safety Statements  22-36/37-26
RTECS  XP2108500
TSCA  TSCA listed
HS Code  2933599590

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