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中国福彩网一百元充值卡:L-Cysteine hydrochloride monohydrate

L-Cysteine hydrochloride monohydrate
L-Cysteine hydrochloride monohydrate structure
CAS No.
7048-04-6
Chemical Name:
L-Cysteine hydrochloride monohydrate
Synonyms
L-Cys-OH HCl;L-Cys.HCl.H2O;H-Cys-OH¤HCl¤H;L-Cys-OH·HCl·H2O;H-CYS-OH HCL H2O;CYSTEINE HCL H2O;L-CYSTEINE-HCL-H20;L-CYSTEINE HCL H2O;H-L-CYS-OH HCL H2O;L-Cysteine.HCI.H2O
CBNumber:
CB9694981
Molecular Formula:
C3H10ClNO3S
Formula Weight:
175.63
MOL File:
7048-04-6.mol

L-Cysteine hydrochloride monohydrate Properties

Melting point:
175°C
alpha 
+6.0~+7.5゜ (20℃/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. 
Store at RT.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
color 
White
PH
0.8-1.2 (100g/l, H2O, 20℃)
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)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
RTECS  HA2285000
3-10-23
TSCA  Yes
HS Code  29309013

L-Cysteine hydrochloride monohydrate price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1.02839 L-Cysteine hydrochloride monohydrate for biochemistry 7048-04-6 1028390025 $42.2 2019-12-02 Buy
Sigma-Aldrich 1.02839 L-Cysteine hydrochloride monohydrate for biochemistry 7048-04-6 1028390100 $68.7 2019-12-02 Buy
Alfa Aesar J14035 L-Cysteine hydrochloride monohydrate, 98.5-101.5% (dry basis) Thermo Scientific 7048-04-6 100g $50.4 2019-12-02 Buy
Alfa Aesar J14035 L-Cysteine hydrochloride monohydrate, 98.5-101.5% (dry basis) Thermo Scientific 7048-04-6 25g $34.6 2019-12-02 Buy
Sigma-Aldrich C6852 L-Cysteine hydrochloride monohydrate 7048-04-6 25g $33.1 2019-12-02 Buy

L-Cysteine hydrochloride monohydrate Chemical Properties,Uses,Production

Chemical Properties

white crystalline powder

Uses

L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly use d as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

Definition

ChEBI: A hydrate that is the monohydrate form of L-cysteine hydrochloride.

Purification Methods

Likely impurities are cystine and tyrosine. Crystallise the salt from MeOH by adding diethyl ether, or from hot 20% HCl. Dry it under vacuum over P2O5. Hygroscopic. [Beilstein 4 III 1580, 1600.]

L-Cysteine hydrochloride monohydrate Preparation Products And Raw materials

Raw materials

Preparation Products


L-Cysteine hydrochloride monohydrate Suppliers

Global( 369)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 [email protected] China 1870 55
Shandong chuangyingchemical Co., Ltd.
13156170209
[email protected] CHINA 4405 58
Capot Chemical Co.,Ltd.
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Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 [email protected] CHINA 3194 55
Henan DaKen Chemical CO.,LTD.
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Henan Tianfu Chemical Co.,Ltd.
0371-55170693
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Mainchem Co., Ltd.
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+86-0592-6210733 [email protected] CHINA 32447 55
Nanjing ChemLin Chemical Industry Co., Ltd.
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[email protected] CHINA 3015 60
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 [email protected] CHINA 24191 60
career henan chemical co
+86-371-86658258
[email protected] CHINA 29996 58

View Lastest Price from L-Cysteine hydrochloride monohydrate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-04-05 L-Cysteine hydrochloride monohydrate
7048-04-6
US $1.00 / kg 1kg 99% High quality Factory Chemwill Asia Co.,Ltd.
2018-08-09 L-Cysteine hydrochloride monohydrate
7048-04-6
US $1.00 / KG 1KG 98% 1ton career henan chemical co

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