Organic Acids
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 .
Sigma Aldrich Fine Chemicals Biosciences Valerenic acid phyproofR R10MG
This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity water residual solvents inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH Co. KG
Sigma Aldrich Fine Chemicals Biosciences L Lactic acid 13C3 99 atom1G
L-()-Lactic Acid-13C3 is the isotope labeled analog of L-()-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 .
Sigma Aldrich Fine Chemicals Biosciences Formic acid >=95%, FCC, FG | 64-18-6 | MFCD00003297 | 10KG
Formic acid >=95%, FCC, FG | Purity: >=95% | Mol Wt: 46.03 | 64-18-6 | MFCD00003297 | 10KG
Accela Chembio Inc (r)-(-)-mandelic Acid | 100g | 611-71-2 | MFCD00064251 | 98% | Shelf Life: 1260 Days | Light Sensitive
(r)-(-)-mandelic Acid | 100g | 611-71-2 | MFCD00064251 | 98% | Shelf Life: 1260 Days | Light Sensitive
Sigma Aldrich Fine Chemicals Biosciences Trifluoroacetic acid 99 fo25G
TRIFLUOROACETIC Trifluoroacetic acid 99 fo25G
Medchemexpress LLC 2-hydroxy-2-phenylacetic acid | 90-64-2 | MFCD00064250 | 99.9% | 152.15 g/mol | C8H8O3 | 25 G
Mandelic acid (2-hydroxy-2-phenylacetic acid; CAS 90-64-2) is a racemic aromatic alpha-hydroxy acid supplied as a white powder for research use. It is used in antimicrobial and pharmaceutical research, and as an intermediate or building block in organic synthesis. The material is high purity and is provided with recommended storage conditions for long-term stability.
- High purity suitable for research and synthesis applications.
- Racemic (±) form for general building-block use.
- White powder form with defined storage stability.
- Used in antimicrobial and pharmaceutical research workflows.
- Compatible with standard organic synthesis and analytical methods.
Sigma Aldrich Fine Chemicals Biosciences Trifluoroacetic anhydride ReagentPlus(R), >=99% | 407-25-0 | MFCD00000416 | 4X100G
Trifluoroacetic anhydride ReagentPlus(R), >=99% | Purity: >=99% | Mol Wt: 210.03 | 407-25-0 | MFCD00000416 | 4X100G