Amino Acids

Organic compounds composed of a central carbon atom, a carboxyl group, an amino group, and a unique side chain; precursors to other molecules including proteins, hormones, and neurotransmitters.

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2,476 – 2,490 of 33,317 results

2,476

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(methylcarboxamide)-OH | 100 g | CAS 1443324-12-6 | InChIKey YJNTZFOOEROQQD-GOSISDBHSA-N

Fmoc-L-Cys(methylcarboxamide)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1443324-12-6
- MDL: No data
- InChIKey: YJNTZFOOEROQQD-GOSISDBHSA-N
- Molecular Weight: 400.449
- Molecular Formula: C20H20N2O5S
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-acetamido-D-cysteine
- SMILES: O=C(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)N[C@H](CSNC(C)=O)C(O)=O

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2,477

eMolecules Chem-Impex L-Cysteine from non-animal source 10kg 342449750 24758 0 000 52-90-4 MFCD00004881 121 150 C3H7NO2S

Chem-Impex L-Cysteine from non-animal source 10kg 342449750 24758 0 000 52-90-4 MFCD00004881 121 150 C3H7NO2S

Pricing & Availability

2,478

Sigma Aldrich Fine Chemicals Biosciences L-Cysteine hydrochloride m100G

hydrochloride L-Cysteine hydrochloride m100G

Pricing & Availability

2,479

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(Et)-OH | 100 g | CAS 200354-34-3 | MDL MFCD00151921

Fmoc-L-Cys(Et)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 200354-34-3
- MDL: MFCD00151921
- InChIKey: OUXUHWHQQLGDQE-SFHVURJKSA-N
- Molecular Weight: 371.451
- Molecular Formula: C20H21NO4S
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-ethyl-L-cysteine
- SMILES: CCSC[C@@H](C(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O

Pricing & Availability

2,480

Medchemexpress LLC L-cysteine | 52-90-4 | MFCD00064306 | 99.9% | 121.16 g/mol | C3H7NO2S | 10mg

L-Cysteine (Standard) is the analytical standard of L-Cysteine This product is intended for research and analytical applications L-Cysteine is a conditionally essential amino acid which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S) glutathione and taurine L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1]

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2,481

STA PHARMACEUTICAL US LLC N-Fmoc-L-cysteine methyl ester | 50 g | CAS 233266-69-8 | MDL MFCD30533786

N-Fmoc-L-cysteine methyl ester is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 233266-69-8
- MDL: MFCD30533786
- InChIKey: KZRRJSFOJTUXHR-KRWDZBQOSA-N
- Molecular Weight: 357.424
- Molecular Formula: C19H19NO4S
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: methyl (((9H-fluoren-9-yl)methoxy)carbonyl)-L-cysteinate
- SMILES: COC([C@@H](NC(OCC1C2=CC=CC=C2C3=C1C=CC=C3)=O)CS)=O

Pricing & Availability

2,482

STA PHARMACEUTICAL US LLC Fmoc-D-hCys(Trt)-OH | 100 g | CAS 1007840-62-1 | MDL MFCD05663440

Fmoc-D-hCys(Trt)-OH is a Amino Acid reagent (Subcategory: Homo-natural AA) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1007840-62-1
- MDL: MFCD05663440
- InChIKey: FKBGJLDYRSFHBT-PGUFJCEWSA-N
- Molecular Weight: 599.745
- Molecular Formula: C38H33NO4S
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29309095
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-D-homocysteine
- SMILES: O=C([C@@H](CCSC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)NC(OCC4C5=CC=CC=C5C6=CC=CC=C64)=O)O

Pricing & Availability

2,483

Medchemexpress LLC D-cysteine | 921-01-7 | MFCD00066461 | 98.0% | 121.16 g·mol⁻¹ | C3H7NO2S | 25 G

D-cysteine is the D-enantiomer of the amino acid cysteine supplied as a white to off-white solid for biochemical research. It is used in studies of stereochemistry-dependent biological activity, microbial modulation, and neural progenitor cell proliferation. The material is provided with documented purity and stability data for laboratory and analytical use.

High purity (98.0%) suitable for research applications.
White to off-white solid appearance for easy handling.
Molecular formula C3H7NO2S; molecular weight 121.16 g·mol⁻¹.
Powder storage: -20°C (3 years) or 4°C (2 years); soluble aliquots stable at -80°C.
Datasheet, certificate of analysis, and safety data sheet available for quality and safety information.

Pricing & Availability

2,484

STA PHARMACEUTICAL US LLC Fmoc-N-Me-D-Cys(Trt)-OH | 50 g | CAS 1349807-46-0 | MDL MFCD20441470

Fmoc-N-Me-D-Cys(Trt)-OH is a Amino Acid reagent (Subcategory: N-Me AA) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1349807-46-0
- MDL: MFCD20441470
- InChIKey: RAKOPMQMPUNRGI-DHUJRADRSA-N
- Molecular Weight: 599.745
- Molecular Formula: C38H33NO4S
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-N-methyl-S-trityl-L-cysteine
- SMILES: CN([C@@H](CSC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)C(O)=O)C(OCC4C5=CC=CC=C5C6=CC=CC=C64)=O

Pricing & Availability

2,485

STA PHARMACEUTICAL US LLC Fmoc-D-Selenocysteine(Trityl)-OH | 5 g | CAS 1639843-37-0 | MDL MFCD11041250

Fmoc-D-Selenocysteine(Trityl)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1639843-37-0
- MDL: MFCD11041250
- InChIKey: BNOGRCVLEKLKJK-UMSFTDKQSA-N
- Molecular Weight: 632.629
- Molecular Formula: C37H31NO4Se
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29319000
- Country Of Origin: China
- IUPAC: (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(tritylselanyl)propanoic acid
- SMILES: OC(=O)[C@H](C[Se]C(C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1)NC(=O)OCC1C2=CC=CC=C2C2=CC=CC=C12

Pricing & Availability

2,486

STA PHARMACEUTICAL US LLC Fmoc-D-Cys(PhAcm)-OH | 50 g | CAS 1565818-55-4 | MDL MFCD24369673

Fmoc-D-Cys(PhAcm)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 1565818-55-4
- MDL: MFCD24369673
- InChIKey: UBFAZPXACZPNQB-XMMPIXPASA-N
- Molecular Weight: 490.574
- Molecular Formula: C27H26N2O5S
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-((2-phenylacetamido)methyl)-D-cysteine
- SMILES: O=C([C@@H](CSCNC(CC1=CC=CC=C1)=O)NC(OCC2C3=CC=CC=C3C4=CC=CC=C42)=O)O

Pricing & Availability

2,487

Medchemexpress LLC L-Cysteine methyl ester hydrochloride | 18598-63-5 | MFCD00038985 | 98.0% | 1 ML

L-Cysteine methyl ester hydrochloride is an antitussive, phlegmolytic agent used to relieve breathing difficulties caused by large amounts of phlegm. It is also a copper corrosion inhibitor used in various industrial studies.

Stimulates the secretory activity of trachea secretory cells.
At high concentrations, it stimulates the synthesis of mucinous glycoprotein in submucosal glands.
Has an obvious viscosity-reducing effect on secretory cell mucous.
Can overcome the harmful effects of morphine on respiration and gas exchange in Sprague Dawley rats without affecting the sedative or early anti-sensory effects of opioids.

Pricing & Availability

2,488

STA PHARMACEUTICAL US LLC Fmoc-N-Me-L-Cys(Trt)-OH | 5 g | CAS 944797-51-7 | MDL MFCD11973909

Fmoc-N-Me-L-Cys(Trt)-OH is a Amino Acid reagent (Subcategory: N-Me AA) sold by WuXi TIDES. Offered in 5 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 944797-51-7
- MDL: MFCD11973909
- InChIKey: RAKOPMQMPUNRGI-PGUFJCEWSA-N
- Molecular Weight: 599.745
- Molecular Formula: C38H33NO4S
- Purity: ≥95%
- Container Type: 30 mL HDPE
- Pack Size: 5 g
- Net Weight: 5 g
- Gross Weight: 16.5 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-N-methyl-S-trityl-D-cysteine
- SMILES: CN([C@H](CSC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)C(O)=O)C(OCC4C5=CC=CC=C5C6=CC=CC=C64)=O

Pricing & Availability

2,489

STA PHARMACEUTICAL US LLC N-Fmoc-L-cysteine methyl ester | 100 g | CAS 233266-69-8 | MDL MFCD30533786

N-Fmoc-L-cysteine methyl ester is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 100 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 233266-69-8
- MDL: MFCD30533786
- InChIKey: KZRRJSFOJTUXHR-KRWDZBQOSA-N
- Molecular Weight: 357.424
- Molecular Formula: C19H19NO4S
- Purity: ≥95%
- Container Type: 500 mL HDPE
- Pack Size: 100 g
- Net Weight: 100 g
- Gross Weight: 160.5 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: methyl (((9H-fluoren-9-yl)methoxy)carbonyl)-L-cysteinate
- SMILES: COC([C@@H](NC(OCC1C2=CC=CC=C2C3=C1C=CC=C3)=O)CS)=O

Pricing & Availability

2,490

STA PHARMACEUTICAL US LLC Fmoc-L-Cys(Boc-aminopropyl)-OH | 1 g | CAS 173963-91-2 | MDL MFCD01318742

Fmoc-L-Cys(Boc-aminopropyl)-OH is a Amino Acid reagent (Subcategory: Cys) sold by WuXi TIDES. Offered in 1 g. Store at 4 °C. SDS available for reference.

Specifications
- CAS: 173963-91-2
- MDL: MFCD01318742
- InChIKey: VODQCWHZYBQNRK-QFIPXVFZSA-N
- Molecular Weight: 500.61
- Molecular Formula: C26H32N2O6S
- Purity: ≥95%
- Container Type: 15 mL HDPE
- Pack Size: 1 g
- Net Weight: 1 g
- Gross Weight: 7.8 g
- Commodity Code: 29309016
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(3-((tert-butoxycarbonyl)amino)propyl)-L-cysteine
- SMILES: CC(OC(NCCCSC[C@@H](C(O)=O)NC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)=O)(C)C

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Amino Acids

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Medchemexpress LLC L-cysteine | 52-90-4 | MFCD00064306 | 99.9% | 121.16 g/mol | C3H7NO2S | 10mg Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC D-cysteine | 921-01-7 | MFCD00066461 | 98.0% | 121.16 g·mol⁻¹ | C3H7NO2S | 25 G Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC L-Cysteine methyl ester hydrochloride | 18598-63-5 | MFCD00038985 | 98.0% | 1 ML Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Medchemexpress LLC L-cysteine | 52-90-4 | MFCD00064306 | 99.9% | 121.16 g/mol | C3H7NO2S | 10mg

Medchemexpress LLC D-cysteine | 921-01-7 | MFCD00066461 | 98.0% | 121.16 g·mol⁻¹ | C3H7NO2S | 25 G

Medchemexpress LLC L-Cysteine methyl ester hydrochloride | 18598-63-5 | MFCD00038985 | 98.0% | 1 ML