L-Cysteine
![]() |
- ₹216 - ₹516027.75
- Product name: L-Cysteine
- CAS: 52-90-4
- MF: C3H7NO2S
- MW: 121.16
- EINECS:200-158-2
- MDL Number:MFCD00064306
- Synonyms:alpha-amino-beta-mercaptopropionicacid ;alpha-Amino-beta-thiolpropionic acid;alpha-amino-beta-thiolpropionicacid ;half-cysteine ;BETA-MERCAPTO-L-ALANINE;CYSTEINE, L-;FEMA 3263;L-2-AMINO-3-MERCAPTOPROPANOIC ACID
36 prices
Selected condition:
Brand
- Sigma-Aldrich(India)
- TCI Chemicals (India)
- SRL
- ottokemi
Package
- 10MG
- 100MG
- 1G
- 2.5G
- 5gm
- 25gm
- 25G
- 1SAMPLE
- 100gm
- 100G
- 500gm
- 500G
- 1KG
- 2.5KG
- 5KG
- 25KG
- 25Gms
- 100Gms
- 500Gms
- ManufacturerSigma-Aldrich(India)
- Product number168149
- Product descriptionL-Cysteine 97%
- Packaging2.5G
- Price₹2652.13
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberC7352
- Product descriptionL-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98%
- Packaging10MG
- Price₹2836.15
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number168149
- Product descriptionL-Cysteine 97%
- Packaging25G
- Price₹3085.13
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number8.16014
- Product description(R)-(+)-Cysteine for synthesis
- Packaging25G
- Price₹3940
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberW326305
- Product descriptionL-Cysteine ≥97%, FG
- Packaging1SAMPLE
- Price₹5141.88
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number30089
- Product descriptionL-Cysteine BioUltra, ≥98.5% (RT)
- Packaging25G
- Price₹5899.63
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number168149
- Product descriptionL-Cysteine 97%
- Packaging2.5KG
- Price₹92055.8
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number95437
- Product descriptionL-Cysteine certified reference material, TraceCERT?
- Packaging1G
- Price₹92164.05
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberC7352
- Product descriptionL-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98%
- Packaging1KG
- Price₹106539.65
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberW326305
- Product descriptionL-Cysteine ≥97%, FG
- Packaging5KG
- Price₹135474.88
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number778672
- Product descriptionL-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0%
- Packaging25KG
- Price₹516027.75
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberC7352
- Product descriptionL-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98%
- Packaging100G
- Price₹15140
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number778672
- Product descriptionL-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0%
- Packaging100G
- Price₹15815.33
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product numberW326305
- Product descriptionL-Cysteine ≥97%, FG
- Packaging1KG
- Price₹30829.6
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number168149
- Product descriptionL-Cysteine 97%
- Packaging500G
- Price₹31338.38
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number778672
- Product descriptionL-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0%
- Packaging1KG
- Price₹37194.7
- Updated2022-06-14
- Buy
Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 168149 | L-Cysteine 97% | 2.5G | ₹2652.13 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | C7352 | L-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98% | 10MG | ₹2836.15 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 168149 | L-Cysteine 97% | 25G | ₹3085.13 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 8.16014 | (R)-(+)-Cysteine for synthesis | 25G | ₹3940 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W326305 | L-Cysteine ≥97%, FG | 1SAMPLE | ₹5141.88 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 30089 | L-Cysteine BioUltra, ≥98.5% (RT) | 25G | ₹5899.63 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 168149 | L-Cysteine 97% | 2.5KG | ₹92055.8 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 95437 | L-Cysteine certified reference material, TraceCERT? | 1G | ₹92164.05 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | C7352 | L-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98% | 1KG | ₹106539.65 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W326305 | L-Cysteine ≥97%, FG | 5KG | ₹135474.88 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 778672 | L-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0% | 25KG | ₹516027.75 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | C7352 | L-Cysteine from non-animal source, BioReagent, suitable for cell culture, ≥98% | 100G | ₹15140 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 778672 | L-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0% | 100G | ₹15815.33 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | W326305 | L-Cysteine ≥97%, FG | 1KG | ₹30829.6 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 168149 | L-Cysteine 97% | 500G | ₹31338.38 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 778672 | L-Cysteine produced by Wacker Chemie AG, Burghausen, Germany, ≥98.0% | 1KG | ₹37194.7 | 2022-06-14 | Buy |
Properties
Melting point :240 °C (dec.) (lit.)
Boiling point :293.9±35.0 °C(Predicted)
alpha :8.75 º (c=12, 2N HCl)
Density :1.197 (estimate)
refractive index :8.8 ° (C=8, 1mol/L HCl)
FEMA :3263 | L-CYSTEINE
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).
Water Solubility :280 g/L (25 ºC)
Sensitive :Air Sensitive
λmax :λ: 260 nm Amax: 1.5
λ: 280 nm Amax: 0.2 JECFA Number :1419
Merck :14,2781
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)
Boiling point :293.9±35.0 °C(Predicted)
alpha :8.75 º (c=12, 2N HCl)
Density :1.197 (estimate)
refractive index :8.8 ° (C=8, 1mol/L HCl)
FEMA :3263 | L-CYSTEINE
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).
Water Solubility :280 g/L (25 ºC)
Sensitive :Air Sensitive
λmax :λ: 260 nm Amax: 1.5
λ: 280 nm Amax: 0.2 JECFA Number :1419
Merck :14,2781
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)
Safety Information
Symbol(GHS): |
![]() |
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Signal word: | Warning | ||||||||||||||
Hazard statements: |
|
||||||||||||||
Precautionary statements: |
|
Description
1. L-Cysteine is one of the 20 natural amino acids and, besides methionine,the only one which contains sulfur.2. L-Cysteine is a thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
3. Cysteine is a non-essential sulfur-containing amino acid in humans, related to cystine, Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin. (NCI Thesaurus (NCIt))
4. L-Cysteine is used as a precursor in food, pharmaceutical and personal care products. It is actively involved in the production of flavors such as meat flavor obtained by reacting with sugars. Also used for the cleavage of disulfide bonds in the hair's keratin. It plays an important role as a key raw material for the manufacture of N-acetyl-L-cysteine, S-carboxymethyl-L-cysteine and L-cysteine base. Its derivative, N-acetyl-L-cysteine is used as a dietary supplement. It acts as an antidote to acetaminophen overdose and prevents liver failure. It protects nerves from oxidation and thereby prevents illnesses like Alzheimer's and Parkinson's. Being an essential amino acid, it used as animal feed especially for sheep, which is responsible the growth of wool.(Alfa Aesar)
5. L-cysteine is an amino acid that is classified as semi-essential in humans, meaning that the body biosynthesizes adequate amounts of it under normal circumstances. The biosynthesis of l-cysteine requires methionine, which supplies the sulfur needed to make this amino acid. This requirement is one of the primary reasons that sulfur is an essential human nutrient.
6. L-cysteine is available through many dietary sources, primarily animal protein. Eggs and dairy products also contain significant levels of l-cysteine. Vegetable sources of l-cysteine include broccoli, Brussels sprouts, garlic, granola, sprouted lentils, oats, onions and peppers. The commercial extraction of l-cysteine typically uses human hair, due to its high concentration of this amino acid. Other commercial sources include hog hair and poultry feathers. L-cysteine may also be synthesized in a process that involves fermentation by a variety of E. coli.
7. L-Cysteine’s high reactivity makes it essential in many biochemical reactions. This amino acid is a thiol, meaning that it has a sulfhydryl group at one end of its chain. This group consists of a sulfur and hydrogen atom, and is the primary reason that l-cysteine is chemically active. In particular, l-cysteine readily undergoes reduction-oxidation reactions, commonly known as redox reactions. This reactivity gives l-cysteine strong antioxidant properties, which help support cells from different types of damage.(xtend-life)
More related product prices
6-Mercaptopurine Sodium thioglycolate N-Acetyl-L-cysteine 868-59-7 2-Ethylhexyl mercaptoacetate Mercaptoacetic acid 3-Mercaptopropionic acid Glycine 6-Aminocaproic acid L-Cysteine hydrochloride anhydrous Tris Base L-Cystine 3-Aminophenol L-CYSTEIC ACID L-Glutamine L(+)-Citrulline L(+)-Arginine dacisteine (AC-CYS-OH)2Related product price
- ALTRENOGEST
₹17644.75-116682.68 - Sodium thioglycolate
₹936-18727.25 - N-Acetyl-L-cysteine
₹400-188840