| 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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Our staff of sales and technical support is available to help you in selecting the right protection for your application as well as to provide you with samples of our products for evaluation. At High Five, we are committed to providing the highest level of customer service, competitive pricing, speedy delivery and a comprehensive, cutting-edge product offering. Our ultimate goal is your satisfaction.
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FAQ
Q1.What's the payment terms?
We could accept T/T, L/C, DP payment terms.
Q2.How about the different index of products in same application?
Specifications can be customized according to your application.
Q3.How about the samples of products?
We can provide free samples under 2Kg(not including freight charge).
Q4.How about the price of products?
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.
Q5.What's the shelf life for the cargoes?
Our product's shelf life is 2 years, which is based on dry and ventilated storage.
Q6.What's the package of the cargoes?
20kg/25kg woven bags, within plastic bags, or as customized.
Q7.What's the delivery time?
We usually deliver the cargoes within 10~20 days after receiving customer's payment or original L/C.
Q8.Which documents can we supply?
Commercial Invoice, Packing List, Certificate of Analysis, Certificate of Origin (FORM E), Bill of Loading, ISO etc.
The documents will be sent by Express within 24 hours against your full payment.
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We supply a price trend to ensure clients know marketing information in time. We will take charge of 100% responsibility for
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