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52-90-4
bosschemical
52-90-4
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description Chemical properties Amino acids health benefits Uses Cysteine Metabolism Production methods synthesis physiological effects | |
Product Name: | L-Cysteine |
CAS: | 52-90-4 |
MF: | C3H7NO2S |
MW: | 121.16 |
EINECS: | 200-158-2 |
Mol File: | 52-90-4.mol |
L-Cysteine Chemical Properties | |
Melting point | 240 °C (dec.) (lit.) |
alpha | 8.75 º (c=12, 2N HCl) |
Boiling point | 293.9±35.0 °C(Predicted) |
bulk density | 300kg/m3 |
density | 1.197 (estimate) |
FEMA | 3263 | L-CYSTEINE |
refractive index | 8.8 ° (C=8, 1mol/L HCl) |
storage temp. | Store below +30°C. |
solubility | H2O: 25 mg/mL |
pka | 1.92(at 25℃) |
form | Solid |
color | White |
PH | 4.5-5.5 (100g/l, H2O, 20℃) |
Odor | sulfury |
Odor Type | sulfurous |
optical activity | Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C). |
biological source | non-animal source |
Water Solubility | 280 g/L (25 ºC) |
λmax | λ: 260 nm Amax: 1.5 |
λ: 280 nm Amax: 0.2 | |
Sensitive | Air Sensitive |
Merck | 142,781 |
JECFA Number | 1419 |
BRN | 1721408 |
Stability: | Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases. |
LogP | -2.49 |
CAS DataBase Reference | 52-90-4(CAS DataBase Reference) |
NIST Chemistry Reference | L-Cysteine(52-90-4) |
EPA Substance Registry System | L-Cysteine (52-90-4) |
![]() ![]() ![]() | |
description Chemical properties Amino acids health benefits Uses Cysteine Metabolism Production methods synthesis physiological effects | |
Product Name: | L-Cysteine |
CAS: | 52-90-4 |
MF: | C3H7NO2S |
MW: | 121.16 |
EINECS: | 200-158-2 |
Mol File: | 52-90-4.mol |
L-Cysteine Chemical Properties | |
Melting point | 240 °C (dec.) (lit.) |
alpha | 8.75 º (c=12, 2N HCl) |
Boiling point | 293.9±35.0 °C(Predicted) |
bulk density | 300kg/m3 |
density | 1.197 (estimate) |
FEMA | 3263 | L-CYSTEINE |
refractive index | 8.8 ° (C=8, 1mol/L HCl) |
storage temp. | Store below +30°C. |
solubility | H2O: 25 mg/mL |
pka | 1.92(at 25℃) |
form | Solid |
color | White |
PH | 4.5-5.5 (100g/l, H2O, 20℃) |
Odor | sulfury |
Odor Type | sulfurous |
optical activity | Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C). |
biological source | non-animal source |
Water Solubility | 280 g/L (25 ºC) |
λmax | λ: 260 nm Amax: 1.5 |
λ: 280 nm Amax: 0.2 | |
Sensitive | Air Sensitive |
Merck | 142,781 |
JECFA Number | 1419 |
BRN | 1721408 |
Stability: | Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases. |
LogP | -2.49 |
CAS DataBase Reference | 52-90-4(CAS DataBase Reference) |
NIST Chemistry Reference | L-Cysteine(52-90-4) |
EPA Substance Registry System | L-Cysteine (52-90-4) |
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