English 
Tel:
+86-156-2878-2329
E-Mail：sales001@bosschemical.com
E-Mail：sales001@bosschemical.com
No. 55, Gongye South Road, Jinan Area, China (Shandong) Pilot Free Trade Zone.
 |
| Quantity: | |
|---|---|
7048-04-6
Futurechemical
7048-04-6
| L-Cysteine hydrochloride monohydrate Basic information | |
| Product Name: | L-Cysteine hydrochloride monohydrate |
| CAS: | 7048-04-6 |
| MF: | C3H10ClNO3S |
| MW: | 175.63 |
| EINECS: | 615-117-8 |
| Mol File: | 7048-04-6.mol |
| L-Cysteine hydrochloride monohydrate Chemical Properties | |
| Melting point | 175°C |
| alpha | +6.0～+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis) |
| bulk density | 780kg/m3 |
| density | 1.54 g/cm3 |
| vapor pressure | <0.1 hPa (20 °C) |
| refractive index | 6 ° (C=8, 1mol/L HCl) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| color | White |
| PH | 0.8-1.2 (100g/l, H2O, 20℃) |
| PH Range | 1月2日 |
| optical activity | [α]20/D +5.6±0.3°, c = 5% in 5 M HCl |
| biological source | synthetic |
| Water Solubility | Soluble in cold water. |
| λmax | λ: 260 nm Amax: 1.0 |
| λ: 280 nm Amax: 0.3 | |
| Sensitive | Hygroscopic |
| Merck | 142,781 |
| BRN | 5158059 |
| Stability: | Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. |
| LogP | 0.235 (est) |
| CAS DataBase Reference | 7048-04-6(CAS DataBase Reference) |
项 目 Item | 标 准 Specifications | 分 | 析 Test | 结 Results | 果 | ||
含量 (干基),% Assay ,% |
min | ≥ | 98.0～102.0 | 99.5 | |||
pH 值 pH value | 1.5 ～ 2.0 | 1.7 | |||||
比旋光度 Specific optical rotation[a] 20° D | + 5.6o ~ +8.9o | + 6.5o | |||||
透 过 率 %, (Transmittance)%, | ≥ |
max | 98.0 | 98.0 | |||
加热减量,% Loss on drying,% | ≤ max | 5.0 | 4.7 | ||||
炽灼残渣,% ≤ Residue on ignition,% max | 0.1 | 0.08 | |||||
重金属 (以Pb 计),% ≤ Heavy metals (as Pb),% max | 0.001 | ＜0.001 | |||||
砷盐（以As 计）,% ≤ Arsenic (as As),% max | 0.0001 | ＜0.0001 | |||||
其它氨基酸 Other amino acids | 色谱未检出 | 未检出 | |||||
结论：本产品符合AJI92 版标准。 Conclusion: This product complies with AJI92standard. | |||||||
| L-Cysteine hydrochloride monohydrate Basic information | |
| Product Name: | L-Cysteine hydrochloride monohydrate |
| CAS: | 7048-04-6 |
| MF: | C3H10ClNO3S |
| MW: | 175.63 |
| EINECS: | 615-117-8 |
| Mol File: | 7048-04-6.mol |
| L-Cysteine hydrochloride monohydrate Chemical Properties | |
| Melting point | 175°C |
| alpha | +6.0～+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis) |
| bulk density | 780kg/m3 |
| density | 1.54 g/cm3 |
| vapor pressure | <0.1 hPa (20 °C) |
| refractive index | 6 ° (C=8, 1mol/L HCl) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| color | White |
| PH | 0.8-1.2 (100g/l, H2O, 20℃) |
| PH Range | 1月2日 |
| optical activity | [α]20/D +5.6±0.3°, c = 5% in 5 M HCl |
| biological source | synthetic |
| Water Solubility | Soluble in cold water. |
| λmax | λ: 260 nm Amax: 1.0 |
| λ: 280 nm Amax: 0.3 | |
| Sensitive | Hygroscopic |
| Merck | 142,781 |
| BRN | 5158059 |
| Stability: | Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. |
| LogP | 0.235 (est) |
| CAS DataBase Reference | 7048-04-6(CAS DataBase Reference) |
项 目 Item | 标 准 Specifications | 分 | 析 Test | 结 Results | 果 | ||
含量 (干基),% Assay ,% |
min | ≥ | 98.0～102.0 | 99.5 | |||
pH 值 pH value | 1.5 ～ 2.0 | 1.7 | |||||
比旋光度 Specific optical rotation[a] 20° D | + 5.6o ~ +8.9o | + 6.5o | |||||
透 过 率 %, (Transmittance)%, | ≥ |
max | 98.0 | 98.0 | |||
加热减量,% Loss on drying,% | ≤ max | 5.0 | 4.7 | ||||
炽灼残渣,% ≤ Residue on ignition,% max | 0.1 | 0.08 | |||||
重金属 (以Pb 计),% ≤ Heavy metals (as Pb),% max | 0.001 | ＜0.001 | |||||
砷盐（以As 计）,% ≤ Arsenic (as As),% max | 0.0001 | ＜0.0001 | |||||
其它氨基酸 Other amino acids | 色谱未检出 | 未检出 | |||||
结论：本产品符合AJI92 版标准。 Conclusion: This product complies with AJI92standard. | |||||||
