S-(Carboxymethyl)-L-cysteine 98%
Supplier: Thermo Scientific Chemicals
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Warning
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Synonyms:
3-[(Carboxymethyl)thio]alanine, Carbocisteine, Carbocysteine
22581-0010
22581-0050
22581-0250
22581-1000
TS22581-0010EA
20
USD
TS22581-0010
TS22581-0050
TS22581-0250
TS22581-1000
S-(Carboxymethyl)-L-cysteine 98%
S-(Carboxymethyl)-L-cysteine
Formula:
C₅H₉NO₄S MW: 179.19 g/mol Melting Pt: 205…207 °C Storage Temperature: Ambient |
MDL Number:
MFCD00002614 CAS Number: 638-23-3 |
Specification Test Results
Appearance | White to off-white Powder |
Infrared spectrum | Conforms |
Loss on drying | ≤0.5 % (105°C, 3 hrs) |
TLC | ≥97.5 % |
Appearance of solution | (1% soln. in 0.1 N HCl, gently warmed): clear colorless |
Residue after ignition | ≤0.2 % |
Specific optical rotation | -29° to -33° (20°C, 589 nm) (c=1, 10% NaHCO3) |
Titration with HClO4 | ≥97.5 % |
Chloride (Cl) | ≤1000 ppm |
Iron (Fe) | ≤5 ppm |
Heavy metals (as Pb) | ≤10 ppm |
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