Other Amino Acids
27 amino acids & relatives
These are amino acids and closely related compounds we supply without a page of their own, including the cysteine derivative NAC and the feed additive GAA. They go into sports and health supplements, animal feed, infant and hospital nutrition, medicines, cosmetics and the growth media used to make biological drugs. Each line gives the CAS number, the main uses and examples of the consumer products the material ends up in.
Delivery: Worldwide, including the United States, Canada, the United Kingdom, Germany and the rest of the EU, the United Arab Emirates, India, Singapore, Malaysia and Australia. Quoted EXW, FOB, CIF or DAP.
Technical details
Most of the L-amino acids below are produced by microbial fermentation, typically with Corynebacterium glutamicum or Escherichia coli strains, and purified by ion exchange and crystallisation. L-Cystine is mainly recovered from keratin hydrolysates, and L-theanine is made enzymatically from glutamine and ethylamine. The racemic and non-proteinogenic products are synthetic: DL-methionine from acrolein, methyl mercaptan and hydrogen cyanide, taurine from ethylene oxide or monoethanolamine, beta-alanine from acrylonitrile or acrylic acid, and creatine from sarcosine and cyanamide.
Where the free form is impractical, the traded form is listed. Lysine trades as the monohydrochloride because the free base is hygroscopic and absorbs carbon dioxide; feed lysine is also sold as a granulated sulfate made directly from the fermentation broth. Asparagine trades as the monohydrate and ornithine as the hydrochloride. Grades follow the end use: feed, food (FCC, JECFA), pharmacopoeial (USP, EP, JP) for infusions and APIs, and low-endotoxin grades for cell-culture media.
Essential and branched-chain amino acids
| Product | CAS | Typical uses | End products |
|---|---|---|---|
| L-Leucine | 61-90-5 | Sports nutrition · Clinical nutrition | BCAA powders · Medical nutrition drinks |
| L-Isoleucine | 73-32-5 | Sports nutrition · Clinical nutrition | BCAA powders · Amino-acid infusions |
| L-Valine | 72-18-4 | Sports nutrition · Feed | BCAA powders · Pig and poultry feed |
| L-Lysine HCl | 657-27-2 | Feed · Food fortification | Pig and poultry feed · Lysine supplements |
| L-Methionine | 63-68-3 | Pharma · Supplements | Amino-acid infusions · Urinary-care cat food |
| DL-Methionine | 59-51-8 | Feed · Aquaculture | Broiler feed · Shrimp and fish feed · Pet food |
| L-Threonine | 72-19-5 | Feed · Clinical nutrition | Pig and poultry feed · Amino-acid infusions |
| L-Tryptophan | 73-22-3 | Feed · Supplements | Piglet feed · Sleep supplements |
| L-Phenylalanine | 63-91-2 | Aspartame synthesis · Pharma | Diet soft drinks (aspartame) · Tabletop sweeteners |
| L-Histidine | 71-00-1 | Clinical nutrition · Cell culture | Amino-acid infusions · Organ-preservation solutions |
Other proteinogenic amino acids
| Product | CAS | Typical uses | End products |
|---|---|---|---|
| L-Alanine | 56-41-7 | Food flavour · Pharma | Seasonings · Amino-acid infusions |
| L-Serine | 56-45-1 | Cell culture · Cosmetics | Moisturising skin creams · Amino-acid infusions |
| L-Glutamine | 56-85-9 | Sports nutrition · Cell culture | Sports recovery powders · Enteral nutrition |
| L-Tyrosine | 60-18-4 | Supplements · Cell culture | Focus supplements · PKU medical foods |
| L-Asparagine monohydrate | 5794-13-8 | Cell culture · Pharma | Biologic drugs (production media) |
| L-Cystine | 56-89-3 | Cell culture · Hair care | Hair and nail supplements · Biologic drugs (production media) |
| L-Hydroxyproline | 51-35-4 | Cosmetics · Pharma intermediate | Anti-ageing skin creams |
Derivatives and close relatives
| Product | CAS | Typical uses | End products |
|---|---|---|---|
| Taurine | 107-35-7 | Energy drinks · Pet food | Energy drinks · Cat food · Infant formula |
| Beta-Alanine | 107-95-9 | Sports nutrition | Pre-workout powders |
| Creatine monohydrate | 6020-87-7 | Sports nutrition · Supplements | Creatine powders and gummies · Pre-workout powders |
| L-Carnitine | 541-15-1 | Supplements · Infant nutrition | Infant formula · Weight-management supplements |
| L-Theanine | 3081-61-6 | Supplements · Beverages | Relaxation supplements · Functional teas and drinks |
| GABA (gamma-aminobutyric acid) | 56-12-2 | Supplements · Functional food | Sleep supplements · Functional chocolate and drinks |
| L-Ornithine HCl | 3184-13-2 | Supplements · Clinical nutrition | Liver and recovery supplements |
| N-Acetyl-L-Tyrosine | 537-55-3 | Parenteral nutrition · Supplements | Amino-acid infusions · Focus supplements |
| N-Acetyl-L-Cysteine (NAC) | 616-91-1 | Pharma API · Supplements | Cough and cold mucolytics · Paracetamol-overdose treatment |
| Guanidinoacetic acid (GAA) | 352-97-6 | Feed additive (creatine precursor) | Poultry and pig feed |
Other amino acids, salts and grades on request. Forms, grades and packaging are confirmed per quote.
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Figures and identifiers here are compiled from public references and provided for general information; they are indicative, not a specification. See all products.