Merck 104350 L-Histidine monohydrochloride monohydrate for biochemistry 100 Gr
- Stok: Stokta var
- Ürün Kodu: 104350.0100
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Ürün Detayları
Merck 104350 L-Histidine monohydrochloride monohydrate for biochemistry. CAS 5934-29-2, pH 3.5 - 4.5 (100 g/l, H₂O, 20 °C).
Temel Özellikler Tablosu
| CAS # | Empirical Formula |
|---|---|
| 5934-29-2 | C₆H₁₀ClN₃O₂ * H₂O |
| Açıklama | |
|---|---|
| Katalog Numarası | 104350 |
| Eş anlamlı | His |
| Ürün Bilgisi | |
|---|---|
| CAS Numarası | 5934-29-2 |
| EC Numarası | 211-438-9 |
| Tepe Formülü | C₆H₁₀ClN₃O₂ * H₂O |
| Molar Kütle | 209.63 g/mol |
| HS Kodu | 2933 29 90 |
| Structure formula Image | |
| Quality Level | MQ100 |
| Fizikokimyasal Bilgiler | |
|---|---|
| Yoğunluk | 1.4723 g/cm3 (20 °C) |
| Erime Noktası | 256 - 268 °C (decomposition) |
| pH Değeri | 4.38 - 4.48 (149.55 g/l, H₂O, 20 °C) |
| Buhar basıncı | <0.1 hPa (20 °C) |
| Kütle yoğunluğu | 770 kg/m3 |
| Çözünürlük | 149.55 g/l |
| Özellikler | |
|---|---|
| Assay (calculated on dried substance) | 99.0 - 101.0 % |
| Özdeşlik (IR-spectrum) | Testi geçer |
| Özdeşlik (wet chemistry) | Testi geçer |
| Appearance | white to almost white crystalline powder or colorless crystals |
| Appearance of solution (50 g/l CO₂-free water) | clear and not more intense in color than reference solution BY₆ |
| Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance) | +9.2 to +10.6 |
| Sulfate (SO₄) | ≤ 200 ppm |
| Heavy metals (as Pb) | ≤ 10 ppm |
| As (Arsenic) | ≤ 5 ppm |
| Ca (Calcium) | ≤ 10 ppm |
| Co (Cobalt) | ≤ 5 ppm |
| Fe (Iron) | ≤ 5 ppm |
| K (Potassium) | ≤ 5 ppm |
| Mg (Magnesium) | ≤ 5 ppm |
| Na (Sodium) | ≤ 50 ppm |
| Zn (Zinc) | ≤ 5 ppm |
| Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity) | ≤ 0.2 % |
| Ninhydrin-positive substances (LC) (ammonium (570 nm)) | ≤ 0.02 % |
| Ninhydrin-positive substances (LC) (total impurities) | ≤ 0.5 % |
| Loss on drying (150 °C) | 7.0 - 10.0 % |