DL-Methionine
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- $5 - $2632.01
- Product name: DL-Methionine
- CAS: 59-51-8
- MF: C5H11NO2S
- MW: 149.21
- EINECS:200-432-1
- MDL Number:MFCD00063097
- Synonyms:DL-Methionine≥ 99% (Titration);(RS)-Methionine;Kochia fruit extract (10:1);DL-Met-OH;DL-METHIONINE (13C5,D8,15N);DL-METHIONINE (METHYL-13C);Kochia seed extract;DL-Methionine Vetec(TM) reagent grade, 98%
133 prices
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Brand
- aablocks
- Acrotein
- Adipogen Life Sciences
- AK Scientific
- Ambeed
- American Custom Chemicals Corporation
- ApexBio Technology
- Apolloscientific
- Arctom
- Atlantic Research Chemicals
- Biorbyt Ltd
- Chemenu
- Chem-Impex
- ChemScene
- Crysdot
- Frontier Specialty Chemicals
- Matrix Scientific
- Medical Isotopes, Inc.
- Sigma-Aldrich
- Synthonix
- TCI Chemical
- Thermo Scientific Chemicals
- TRC
- Usbiological
Package
- 20mg
- 25mg
- 100mg
- 200ul
- 500mg
- 10mM*1mLinWater(Solid+Solvent)
- 200mg
- 1g
- 1000mg
- 1.00g
- 2.50g
- 2.500g
- m0950000
- 5.00g
- 5g
- sample
- 10g
- 25g
- 50G
- 100g
- 250g
- 500g
- 1kg
- 1000g
- 2.5kg
- 5000g
- 5KG
- 10KG
- 25kg
- 100KG
- 1 each
- 50 mg
- 100 g
- 250 g
- 1 unit
- 1gm:
- 10mM*1mLinWater(Solution)
- Manufactureraablocks
- Product numberAA0034Q4
- Product descriptionDL-Methionine 98%
- Packaging100g
- Price$8
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA0034Q4
- Product descriptionDL-Methionine 98%
- Packaging500g
- Price$19
- Updated2026-05-28
- Buy
- Manufactureraablocks
- Product numberAA0034Q4
- Product descriptionDL-Methionine 98%
- Packaging1000g
- Price$27
- Updated2026-05-28
- Buy
- ManufacturerAcrotein
- Product numberna-0092
- Product descriptionDL-Methionine 97%
- Packaging500g
- Price$27.5
- Updated2026-05-25
- Buy
- ManufacturerAcrotein
- Product numberna-0092
- Product descriptionDL-Methionine 97%
- Packaging100g
- Price$14.66
- Updated2026-05-25
- Buy
- ManufacturerAcrotein
- Product numberNA-0092
- Product descriptionDL-Methionine 97%
- Packaging100g
- Price$14.67
- Updated2021-12-16
- Buy
- ManufacturerAcrotein
- Product numberNA-0092
- Product descriptionDL-Methionine 97%
- Packaging250g
- Price$18.33
- Updated2021-12-16
- Buy
- ManufacturerAcrotein
- Product numberna-0092
- Product descriptionDL-Methionine 97%
- Packaging250g
- Price$18.34
- Updated2026-05-25
- Buy
- ManufacturerAcrotein
- Product numberNA-0092
- Product descriptionDL-Methionine 97%
- Packaging1kg
- Price$82.5
- Updated2021-12-16
- Buy
- ManufacturerAdipogen Life Sciences
- Product numberCDX-D0444-G500
- Product descriptionDL-Methionine ≥99%
- Packaging500g
- Price$82
- Updated2021-12-16
- Buy
- ManufacturerAdipogen Life Sciences
- Product numberCDX-D0444-G100
- Product descriptionDL-Methionine ≥99%
- Packaging100g
- Price$58
- Updated2026-05-06
- Buy
- ManufacturerAdipogen Life Sciences
- Product numberCDX-D0444-G500
- Product descriptionDL-Methionine ≥99%
- Packaging500g
- Price$102
- Updated2026-05-06
- Buy
- ManufacturerAK Scientific
- Product numberF124
- Product descriptionDL-Methionine 99%
- Packaging500g
- Price$92
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberJ53255
- Product descriptionDL-Methionine 95%
- Packaging500g
- Price$69
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberF124
- Product descriptionDL-Methionine 99%
- Packaging100g
- Price$39
- Updated2026-06-04
- Buy
- ManufacturerAK Scientific
- Product numberF124
- Product descriptionDL-Methionine 99%
- Packaging5g
- Price$16
- Updated2026-06-04
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| aablocks | AA0034Q4 | DL-Methionine 98% | 100g | $8 | 2026-05-28 | Buy |
| aablocks | AA0034Q4 | DL-Methionine 98% | 500g | $19 | 2026-05-28 | Buy |
| aablocks | AA0034Q4 | DL-Methionine 98% | 1000g | $27 | 2026-05-28 | Buy |
| Acrotein | na-0092 | DL-Methionine 97% | 500g | $27.5 | 2026-05-25 | Buy |
| Acrotein | na-0092 | DL-Methionine 97% | 100g | $14.66 | 2026-05-25 | Buy |
| Acrotein | NA-0092 | DL-Methionine 97% | 100g | $14.67 | 2021-12-16 | Buy |
| Acrotein | NA-0092 | DL-Methionine 97% | 250g | $18.33 | 2021-12-16 | Buy |
| Acrotein | na-0092 | DL-Methionine 97% | 250g | $18.34 | 2026-05-25 | Buy |
| Acrotein | NA-0092 | DL-Methionine 97% | 1kg | $82.5 | 2021-12-16 | Buy |
| Adipogen Life Sciences | CDX-D0444-G500 | DL-Methionine ≥99% | 500g | $82 | 2021-12-16 | Buy |
| Adipogen Life Sciences | CDX-D0444-G100 | DL-Methionine ≥99% | 100g | $58 | 2026-05-06 | Buy |
| Adipogen Life Sciences | CDX-D0444-G500 | DL-Methionine ≥99% | 500g | $102 | 2026-05-06 | Buy |
| AK Scientific | F124 | DL-Methionine 99% | 500g | $92 | 2026-06-04 | Buy |
| AK Scientific | J53255 | DL-Methionine 95% | 500g | $69 | 2026-06-04 | Buy |
| AK Scientific | F124 | DL-Methionine 99% | 100g | $39 | 2026-06-04 | Buy |
| AK Scientific | F124 | DL-Methionine 99% | 5g | $16 | 2026-06-04 | Buy |
Properties
Melting point :284 °C (dec.)(lit.)
alpha :-1～+1°(D/20℃)(c=8,HCl)
Boiling point :306.9±37.0 °C(Predicted)
Density :1.34
refractive index :1.5216 (estimate)
FEMA :3301 | D,L-METHIONINE
storage temp. :2-8°C
solubility :1 M HCl: 0.5 M at 20 °C, clear, colorless
form :Crystals or Crystalline Powder
pka :2.13(at 25℃)
color :White
Odor :mild sulfurous acidic
Odor Type :acidic
biological source :synthetic
optical activity :[α]/D, c = 5 in 5 M HCl (inactive)
Water Solubility :2.9 g/100 mL (20 ºC)
Merck :14,5975
JECFA Number :1424
BRN :636185
BCS Class :1
Stability :Stable. Incompatible with strong oxidising agents.
Major Application :peptide synthesis
Cosmetics Ingredients Functions :ANTISTATIC
HAIR CONDITIONING
SKIN CONDITIONING
ANTIOXIDANT Cosmetic Ingredient Review (CIR) :DL-Methionine (59-51-8)
InChI :1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)
InChIKey :FFEARJCKVFRZRR-UHFFFAOYSA-N
SMILES :CSCCC(N)C(O)=O
LogP :0.37
CAS DataBase Reference :59-51-8(CAS DataBase Reference)
NIST Chemistry Reference :Methionine(59-51-8)
EPA Substance Registry System :Methionine (59-51-8)
alpha :-1～+1°(D/20℃)(c=8,HCl)
Boiling point :306.9±37.0 °C(Predicted)
Density :1.34
refractive index :1.5216 (estimate)
FEMA :3301 | D,L-METHIONINE
storage temp. :2-8°C
solubility :1 M HCl: 0.5 M at 20 °C, clear, colorless
form :Crystals or Crystalline Powder
pka :2.13(at 25℃)
color :White
Odor :mild sulfurous acidic
Odor Type :acidic
biological source :synthetic
optical activity :[α]/D, c = 5 in 5 M HCl (inactive)
Water Solubility :2.9 g/100 mL (20 ºC)
Merck :14,5975
JECFA Number :1424
BRN :636185
BCS Class :1
Stability :Stable. Incompatible with strong oxidising agents.
Major Application :peptide synthesis
Cosmetics Ingredients Functions :ANTISTATIC
HAIR CONDITIONING
SKIN CONDITIONING
ANTIOXIDANT Cosmetic Ingredient Review (CIR) :DL-Methionine (59-51-8)
InChI :1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)
InChIKey :FFEARJCKVFRZRR-UHFFFAOYSA-N
SMILES :CSCCC(N)C(O)=O
LogP :0.37
CAS DataBase Reference :59-51-8(CAS DataBase Reference)
NIST Chemistry Reference :Methionine(59-51-8)
EPA Substance Registry System :Methionine (59-51-8)
Safety Information
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Description
Methionine (2-amino-4(methylthio)-butanoic acid) is one of the essential amino acids, which are used by our bodies to make proteins and can only be supplied by diets. Methionine is found in metal, fish, and dairy products, and it plays an important role in many cell functions.With an asymmetric carbon, methionine molecules can be D (Dextrogyre) or L (Levogyre), optical isomers. L-methionine is the biologically active form of methionine in proteins. D-methionine is converted into L-methionine by enzymatic processes inside animal bodies in such a way that L- and D-methionine are equivalent for animal nutrition. D,L-methionine (DLM) is the most common form of commercialized methionine, composed of the racemic mixture of D and L-methionine. D,L-methionine is commercialized as a white crystalline powder, containing 99% of active substance, or in a brown liquid form with 40% purity, made from the dissolution of D,L-methionine in sodium hydroxide.
Methionine is used to prevent liver damage in acetaminophen (Tylenol) poisoning. It is also used to increase the acidity of urine, to treat liver disorders, and to improve wound healing. Furthermore, it is used for the treatment of depression, alcoholism, allergies, asthma, copper poisoning, radiation side effects, schizophrenia, drug withdrawal, and Parkinson's disease. Methionine is registered as an ingredient for use in cosmetics as antistatic and for skin conditioning (Commission Decision 2006/257/EC).
D,L-methionine is used in animal feeds for poultry and pigs, as well as in diets for cats and dogs. D,L-methionine technically pure protected with copolymer vinylpyridine/styrene, and D,L-methionine protected with ethylcellulose when used as a feed additive for ruminants, are currently authorized for use for all animal species and ruminants, respectively, by Regulation (EU) No 469/2013.
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Suppliers and manufacturers
Shaanxi Dideu Medichem Co. Ltd
DL-Methionine
CAS:59-51-8
Shaanxi TNJONE Pharmaceutical Co., Ltd
Nantong Guangyuan Chemicl Co,Ltd
Dl-Methionine
CAS:59-51-8
