Amino Acids & Derivatives
L-CYSTEINE For Biochemistry
(R)-2-Amino-3-mercaptopropionic acid
- Article code
- 03140
- CAS
- 52-90-4
- Grade
- For Biochemistry
- Purity
- 99%
- Category
- Amino Acids & Derivatives
Specification and availability are confirmed by Chemical Suppliers when you inquire. Product details are attached to your request automatically.
Properties
- Article No.
- 03140
- Grade
- For Biochemistry
- Purity
- 99%
- CAS No.
- 52-90-4
- Molecular Formula
- C3H7NO2S
- Molecular Weight
- 121.16
- H.S. Code
- 2930.9040
- Shelf Life
- 60 Months
Product information
| Article No. | 03140 | Grade | For Biochemistry |
| Purity | 99% | CAS No. | 52-90-4 |
| Molecular Formula | C3H7NO2S | Molecular Weight | 121.16 |
| H.S. Code | 2930.9040 | Shelf Life | 60 Months |
Physical Properties
| Physical state at 20 °C | Solid | Colour | Colorless crystalline |
| Melting point/ Freezing point [°C] | 220 °C | Solubility in water [% weight] | Appreciable (> 10%) |
Specifications
| Appearance | Colorless crystalline powder | Assay | Min. 99% |
| Specific optical rotation ([α]20/D) | +8.0° to +9.0° | UV absorbance | Max. 0.5 |
| Loss on drying (at 105°C; 4 hrs) | Max. 0.3% | Chloride (Cl) | Max. 0.002% |
| Sulphate (SO4) | Max. 0.01% | Heavy metal (as Pb) | Max. 0.001% |
| Ammonium (NH4) | Max. 0.01% | Foreign amino acids | Max. 0.5% |
| Other ninhydrin positive substances (as glycine) | Max. 0.1% |
Packaging options
- 5 g (00005)
- 25 g (00025)
- 500 g (00500)
Details
L-CYSTEINE For Biochemistry (R)-2-Amino-3-mercaptopropionic acid MSDS DE EN FR KO PT ES TH TR COAs Packings 5 g (00005) 25 g (00025) 500 g (00500) Print friendly version Article No. 03140 Grade For Biochemistry Purity 99% CAS No. 52-90-4 Molecular Formula C 3 H 7 NO 2 S Molecular Weight 121.16 H.S. Code 2930.9040 Shelf Life 60 Months Physical Properties Physical state at 20 °C Solid Colour Colorless crystalline Melting point/ Freezing point [°C] 220 °C Solubility in water [% weight] Appreciable (> 10%) Specifications Appearance Colorless crystalline powder Assay Min. 99% Specific optical rotation ([α]20/D) +8.0° to +9.0° UV absorbance Max. 0.5 Loss on drying (at 105°C; 4 hrs) Max. 0.3% Chloride (Cl) Max. 0.002% Sulphate (SO4) Max. 0.01% Heavy metal (as Pb) Max. 0.001% Ammonium (NH4) Max. 0.01% Foreign amino acids Max. 0.5% Other ninhydrin positive substances (as glycine) Max. 0.1% Safety Information and Hazard Symbols Symbol: GHS07 Signal Word: Warning Hazardous Statement: H302 Revision Date: 15-Jan-2015 Home Lab Chemicals Amino Acids & Derivatives L-CYSTEINE