Molecular Formula | C6H7N3O3S |
Molar Mass | 201.2 |
Density | 1.463 (estimate) |
Melting Point | 192°C (dec.)(lit.) |
Boling Point | 425.1±37.0 °C(Predicted) |
Flash Point | 210.9°C |
Water Solubility | 0.6 g/100 mL (20 ºC) |
Solubility | DMSO (Slightly), Methanol (Slightly, Heated) |
Vapor Presure | 5.53E-08mmHg at 25°C |
Appearance | White to bright yellow crystals |
Color | White to Off-White |
Maximum wavelength(λmax) | ['273nm(MeOH)(lit.)'] |
pKa | 2.97±0.10(Predicted) |
Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
Refractive Index | 1.6630 (estimate) |
MDL | MFCD00010416 |
Physical and Chemical Properties | Melting point 176-182°C water-soluble 0.6g/100 mL (20°C) |
Use | As an antibiotic drug intermediate, it is the side chain of cefotaxime sodium, ceftriaxone, ceftazidine, etc. |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 29349990 |
white or yellowish crystalline powder, or needle-like crystals. Melting Point: 128-132 °c (decomposition during melting).
ethyl acetoacetate was prepared by nitrosation, methylation, bromination, cyclization and hydrolysis.
pharmaceutical intermediates.
Use | used as an antibiotic drug intermediate, is cefotaxime sodium, ceftriaxone, side chain of ceftazidine et al. RH-756 side chain of ceftazidime et al. |
production method | ethyl acetoacetate is prepared by nitrosation, methylation, bromination, cyclization and hydrolysis. |