Merck 104350 L-Histidine monohydrochloride...
Merck 104350 L-Histidine monohydrochloride monohydrate for biochemistry. CAS 5934-29-2, pH 3.5 - 4.5 (100 g/l, H₂O, 20 °C).
Synonyms: His
Katalog No: 100366.2500
Marka: Merck
Synonyms: 2-Hydroxypropionic acid, Lactol
Grade: Ph Eur,BP,E 270
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| Kalite Değeri |
|---|
| Ph Eur,BP,E 270 |
| Açıklama | |
|---|---|
| Katalog Numarası | 100366 |
| Eş anlamlı | 2-Hydroxypropionic acid, Lactol |
| Ürün Bilgisi | |
|---|---|
| Grade | Ph Eur,BP,E 270 |
| HS Kodu | 2918 11 00 |
| Quality Level | MQ500 |
| Fizikokimyasal Bilgiler | |
|---|---|
| Kaynama Noktası | 122 °C (20 hPa) |
| Yoğunluk | 1.21 g/cm3 (20 °C) |
| Erime Noktası | 18 °C |
| pH Değeri | 2.8 (10 g/l, H₂O, 20 °C) |
| Buhar basıncı | 0.1 hPa (25 °C) |
| Özellikler | |
|---|---|
| Saflık (alkalimetrik) | 88.0 - 92.0 % |
| Assay (stereochemical purity of (S)-lactic acid) | ≥ 95.0 % |
| Özdeşlik (IR-spectrum) | Testi geçer |
| Özdeşlik (pH) | Testi geçer |
| Özdeşlik (Yoğunluk) | Testi geçer |
| Özdeşlik (Lactat) | Testi geçer |
| Özdeşlik (assay) | Testi geçer |
| Appearance | clear, oily liquid, not more intense in color than reference solution Y₆ |
| Ether-inÇözünür substances | Testi geçer |
| Citric, oxalic and Phosphoric acids | Testi geçer |
| Yoğunluk (d 20/20) | 1.20 - 1.21 |
| Chloride (Cl) | ≤ 0.2 % |
| Sulfate (SO₄) | ≤ 200 ppm |
| As (Arsenic) | ≤ 3 ppm |
| Ca (Calcium) | ≤ 200 ppm |
| Fe (Iron) | ≤ 10 ppm |
| Hg (Mercury) | ≤ 1 ppm |
| Pb (Lead) | ≤ 2 ppm |
| Ethanol | ≤ 5000 ppm |
| Acetic acid | ≤ 5000 ppm |
| Methanol | ≤ 50 ppm |
| Other residual solvents (ICH Q3C) | excluded by manufacturing process |
| Sugars and other reducing substances | Testi geçer |
| Sulfated ash (600 °C) | ≤ 0.10 % |
| Total aerobic microbial count (TAMC) | ≤ 10² |
| Total combined yeasts/moulds count (TYMC) | ≤ 10² |
| Bacterial endotoxins | ≤ 5 I.U./g |
| Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). | |
| Corresponds to Ph Eur,BP, E 270 Conforms to the purity criteria on food additives according to European Commission directive 2008/84/EC. | |