6-O-Palmitoyl-L-ascorbinsäure 98,0-100,5%, EMPROVE® ESSENTIAL Ph. Eur., BP, NF, FCC, E304, SAFC®
Lieferant: MERCK PRODUCTION CHEMICALS
5.00090.2500
5.00090.9010
5.00090.2500EA
2970
CHF
5.00090.2500
5.00090.9010
6-O-Palmitoyl-L-ascorbinsäure 98,0-100,5%, EMPROVE® ESSENTIAL Ph. Eur., BP, NF, FCC, E304, SAFC®
6-O-Palmitoyl-L-ascorbic acid
|
Formel:
C₂₂H₃₈O₇ Siedepunkt: ∼250 °C Melting Pt: 107…117 °C Lager Temperatur: Raumtemperatur |
MDL Number:
MFCD00005377 CAS-Nummer: 137-66-6 EINECS: 205-305-4 |
Spezifikation Testergebnisse
| Assay (iodometric, calc. on dried substance) | 98.0 - 100.5 % |
| Identity (IR-spectrum) | conforms |
| Identity (Tillmans-Reaction) | conforms |
| Appearance | white or yellowish-white powder |
| Appearance of solution (100 g/l, methanol) | clear and not more intense in colour than colour reference solution BY4 (Ph. Eur.) |
| Melting range (lower value) | ≥ 107 °C |
| Melting range (upper value) | ≤ 117 °C |
| Spec. rotation α 20/D (100 g/l, Metanol, calc on dried basis) | +21 - +24 ° |
| Spec. rotation α 20/D (50 g/l, methanol) | +21 - +24 ° |
| Spec. rotation α 25/D (100 g/l, Metanol, calc on dried basis) | +21 - +24 ° |
| Spec. rotation α 25/D (100 g/l, methanol) | +21 - +24 ° |
| Heavy metals (as Pb) | ≤ 10 ppm |
| As (Arsenic) | ≤ 3 ppm |
| Cu (Copper) | ≤ 25 ppm |
| Hg (Mercury) | ≤ 1 ppm |
| Pb (Lead) | ≤ 2 ppm |
| Zn (Zinc) | ≤ 25 ppm |
| Ethyl acetate (HS-GC) | ≤ 5000 ppm |
| Methylisobutylketone (HS-GC) | ≤ 5000 ppm |
| Other residual solvents (ICH Q3C) | excluded by manufacuring process |
| Sulfated ash (600 °C) | ≤ 0.1 % |
| Loss on drying (5 h, 60 °C, Vacuum) | ≤ 1.0 % |
| Residues of metal catalysts or metal reagents acc.to EMEA/CHMP/SWP/4446/2000 | are not likely to be present. |
| Correspond to Ph Eur, BP, NF, FCC, E 304 | Conforms to the purity criteria on food additives according to the current ECR |
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