| Name |
L-Cysteine hydrochloride monohydrate |
CAS NO |
7048-04-6 |
| Synonym |
|
Molecular weight |
|
| Molecular Formular |
C3H8ClNO2S.H2O |
Purity |
|
| bp |
|
Appearance |
White crystals or crystalline powder; strongly acid taste |
| Application |
Pharmaceutical Intermediates |
Place of Origin |
|
| Documents available |
|
Certificate |
|
| Packing |
25kg/barrel |
Storage |
|
| EINECS Number |
|
Structure |
|
| Melting point |
|
Shelf life |
|
| HS CODE |
|
Boiling point |
|
| |
L-Cysteine hydrochloride monohydrate
CAS:7048-04-6
| |
Specifications |
| USP |
AJI |
| Appearance |
White crystals or crystalline powder; strongly acid taste. |
| Identification |
Infrared Absorption |
--- |
| Specific optical rotation |
+5.6 °- +8.9 ° |
+5.5 °- +7.0 ° |
| State of solution (Transmittance) |
--- |
≥ 98.0% clear and colorless |
| Chloride (Cl) |
--- |
19.89-20.29% |
| Ammonium(NH4) |
--- |
≤ 0. 002% |
| Sulfate |
≤ 0. 03 % |
≤ 0. 020% |
| Iron |
≤ 0. 003 % |
10ppm |
| Heavy Metals (as Pb), |
≤ 0.00 15% |
≤ 10ppm |
| Arsenic (as As), |
--- |
≤ 1ppm |
| Other amino acids |
--- |
Not detected |
| Organic volatile impurities |
Meets the requirement |
--- |
| Loss on drying, |
8-12 % |
8.5-12 % |
| Residue on ignition, |
c |
≤ 0.1 0 % |
| Assay |
98.5-101.5 % |
9 9.0-10 0.5 % |
| pH value |
--- |
1.5-2.0 |
| Organic volatile impurities |
Meets the requirement |
--- |
| Chromatographic purity |
0.5% max Individual impurity, 2% max total |
--- |
| Product Categories: |
Amino acid;amino;Cysteine [Cys, C];alpha-Amino Acids;Amino Acids;Antioxidant;Biochemistry;Nutritional Supplements;Cysteine/CystineIon Channels;Excitatory Amino Acids;Ionotropic Glutamate Receptor ModulatorsNeurotransmitters;Ligand-Gated Ion Channels;NMDA Agonists;BioUltra;L-Amino Acids;Amino AcidsPharmacopoeia (USP);Pharmacopoeia A-ZPharmacopoeia (USP);Pharmacopoeial Amino Acids;Amino Acids;Biochemicals and Reagents;Amino AcidsPeptide Synthesis;Amino Acid Derivatives;Cysteine/Cystine;Amino AcidsBiochemicals and Reagents;Core Bioreagents;Research Essentials |
| Mol File: |
7048-04-6.mol |
| |
| |
| L-Cysteine hydrochloride monohydrate Chemical Properties |
| Melting point |
175°C |
| alpha |
+6.0~+7.5 (20ºC/D)(c=8,6mol/l HCl)(calculated on the dried basis) |
| 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, 20ºC) |
| PH Range |
1 - 2 |
| optical activity |
[α]20/D +5.6±0.3°, c = 5% in 5 M HCl |
| Water Solubility |
Soluble in cold water. |
| λmax |
λ: 260 nm Amax: 1.0
λ: 280 nm Amax: 0.3 |
| Sensitive |
Hygroscopic |
| Merck |
14,2781 |
| BRN |
5158059 |
| Stability: |
Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride. |
| CAS DataBase Reference |
7048-04-6(CAS DataBase Reference) |
Hunan JK International Trade Corporation / JK BIO-CHEM CO.,LTD is a professional exporter of food/feed additives and food /feed ingredients in China. With years of development, now we are able to provide the following food additives and food ingredients: thickeners, antioxidants, preservatives, vitamins, sweeteners, proteins, acidulants, nutritional supplements, flavours, coenzyme and so on.
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We could accept T/T, L/C, DP payment terms.
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Specifications can be customized according to your application.
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We can provide free samples under 2Kg(not including freight charge).
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Our products are chemical synthesis got from underground brine, which is available for a variety of usage. Our products are high purity with good quality, and the price is based on different specification and quantity.
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Our product's shelf life is 2 years, which is based on dry and ventilated storage.
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We usually deliver the cargoes within 10~20 days after receiving customer's payment or original L/C.
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The documents will be sent by Express within 24 hours against your full payment.
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