Lactic Acid
Sigma Aldrich Fine Chemicals Biosciences L-Lactic Dehydrogenase fro
Lactic Dehydrogenase (LDH) has a total molecular weight of 140 kDa and is composed of 4 subunits which are designated M subunit (muscle) and H subunit (heart). These subunits may be mixed in any of 5 combinations (M4 M3H1 M2H2 MH3 and H4). Skeletal muscle contains LDH that is predominately M4 with some small amounts of M3H and traces of H2H2. The H and M subunits are quite similar in molecular weight but differ substantially in amino acid composition. Rabbit muscle LDH dissociates into dimeric species (MW ~70 kDa) in acetate-chloride at pH 5.0 the dissociation is reversible. Biochemistry 13 3527-3531 (1974). Oxidizes glyoxylate and lactate.Isoelectric point 8.4-8.6Optimal pH 7.5 .
Medchemexpress LLC D-(-)-lactic acid sodium | 920-49-0 | MFCD00066577 | 98.0% | 112.06 g/mol | C3H5NaO3 | 5 MG
D-(-)-Lactic acid sodium (sodium D-lactate; CAS 920-49-0) is the sodium salt of the D-enantiomer of lactic acid. It is used as an endogenous metabolite standard and as a reagent in biochemical and metabolic-tracing studies. The compound is supplied as a solid in sealed vials and is reported at 98.0% purity by NMR.
- Sodium salt form of D-lactic acid, water-soluble and easy to prepare.
- Suitable as an endogenous metabolite standard for analytical methods.
- Useful for metabolic tracing and biochemical studies.
- Reported molecular formula C3H5NaO3 and molecular weight 112.06 g/mol.
- Purity reported as 98.0% by NMR.
- Supplied in sealed vial for convenient storage and handling.
Sigma Aldrich Fine Chemicals Biosciences L-(+)-Lactic acid | 79-33-4 | MFCD00064266 | 100g
L-(+)-Lactic acid | Purity: 98% | MW: 90.08 | 79-33-4 | MFCD00064266 | 100g
Sigma Aldrich Fine Chemicals Biosciences L-(+)-Lactic acid BioXtra, >=98% (titration) | 79-33-4 | MFCD00064266 | 10G
L-(+)-Lactic acid BioXtra, >=98% (titration) | Purity: >=98% (titration) | Mol Wt: 90.08 | 79-33-4 | MFCD00064266 | 10G