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Purity Vitamin A Palmitate 79-81-2
CAS No:79-81-2
Appearance:Light yellow free-flowing powder or oily liquid
| Item | Standard | Results |
| Appearance | White crystal or crystalline powder | Conforms |
| Clarity of solution | Clear | Clear |
| Chloride (Cl) | ≤0.020% | <0.020% |
| Assay | ≥98.5% | 98.9% |
| Heavy metals | ≤10 ppm | <10 ppm |
| Arsenic (As) | ≤1 ppm | <1 ppm |
| Lead | ≤1 ppm | <1 ppm |
| Residue on ignition | ≤0.10% | 0.05% |
| Loss on drying | ≤0.30% | 0.08% |
| pH value | 6.5-7.5 | 6.8 |
4-Aminobutyric acid/GABA is a non-protein amino acid that functions as a neurotransmitter (a chemical that facilitates communication between neurons). Neurotransmitters are either "excitatory" (i.e. they stimulate the firing of a neuron) or "inhibitory" (i.e., they tend to suppress neuron firing). GABA, which is produced from glutamate, is an inhibitory neurotransmitter. In fact, it's the primary inhibitory neurotransmitter in the brain.
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