A7452712
<i>S</i>-(Carboxymethyl)-<small>L</small>-cysteine , >98.0%(HPLC)(T) , 638-23-3
Synonym(s):
3-carboxymethylthio-L -alanine;S-Carboxymethyl-L -cysteine
CAS NO.：638-23-3
Empirical Formula: C5H9NO4S
Molecular Weight: 179.19
MDL number: MFCD00002614
EINECS: 211-327-5
| Pack Size | Price | Stock | Quantity |
| 1g | RMB31.20 | In Stock |
|
| 5g | RMB67.20 | In Stock |
|
| 25G | RMB148.80 | In Stock |
|
| 100g | RMB361.60 | In Stock |
|
| 500g | RMB1312.00 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 208-213 °C (dec.) |
| Boiling point: | 417.3±45.0 °C(Predicted) |
| alpha | -31 º (c=1, 10% NaH2CO3) |
| Density | 1.315 (estimate) |
| refractive index | 1.5216 (estimate) |
| storage temp. | 2-8°C |
| solubility | Aqueous Acid, Aqueous Base (Sparingly, Sonicated) |
| pka | 2.06±0.10(Predicted) |
| form | Amorphous Powder |
| color | White to slightly off-white |
| Water Solubility | SOLUBLE IN COLD WATER |
| Merck | 14,1802 |
| BRN | 1725012 |
| LogP | 0.204 (est) |
| CAS DataBase Reference | 638-23-3(CAS DataBase Reference) |
| EPA Substance Registry System | L-Cysteine, S-(carboxymethyl)- (638-23-3) |
Description and Uses
Labeled Carbocisteine, intended for use as an internal standard for the quantification of Carbocisteine by GC- or LC-mass spectrometry.
Safety
| Symbol(GHS) |  GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25-36-26 |
| WGK Germany | 2 |
| RTECS | AY4342000 |
| TSCA | Yes |
| HS Code | 29309090 |
| Toxicity | LD50 oral in rat: > 15gm/kg |
