L-Cysteine Hydrochloride Monohydrate CAS 7048-04-6 Assay 98.5 ~ 101.0% (Titration on Dried Basis) Hoobkas
Shanghai Ruifu Chemical Co., Ltd. yog cov chaw tsim khoom thiab cov chaw muag khoom ntawm L-Cysteine Hydrochloride Monohydrate (H-Cys-OH·HCl·H2O) (CAS: 7048-04-6) nrog cov khoom zoo.Raws li ib tug ntawm cov loj tshaj plaws amino acids lwm tus neeg nyob rau hauv Tuam Tshoj, Ruifu Chemical manufactures tsim nyog amino acids derivatives mus rau thoob ntiaj teb cov qauv, xws li AJI, USP, EP, GB, thiab FCC tus qauv.Peb tuaj yeem muab COA, xa khoom thoob ntiaj teb, me me thiab ntau ntau.Yog tias koj txaus siab rau L-Cysteine Hydrochloride Monohydrate,Please contact: alvin@ruifuchem.com
| Tshuaj npe | L-Cysteine Hydrochloride Monohydrate |
| Synonyms | H-Cys-OH · HCl;H-Cys-OH · HCl Monohydrate;H-Cys-OH·HCl·H2O;L-Cys-OH·HCl·H2O;L-Cysteine HCL Monohydrate;L-Cysteine HCl H2O;(R)-2-Amino-3-Mercaptopropanoic Acid Hydrochloride Monohydrate;LCHCMH |
| Tshuag xwm txheej | Hauv Tshuag, Muaj Peev Xwm Ntau Lawm 3000 Tons ib xyoos |
| CAS Nr | 7 048-04-6 |
| Molecular Formula | C3H10ClNO3S |
| Molecular Luj | 175.64 (157.62 hli) |
| Melting Point | 175.0 ~ 178.0 ℃ |
| Qhov ntom | 1.54 g / cm3 |
| rhiab heev | Hygroscopic.Huab cua Sensitive, Lub teeb rhiab heev, Moisture Sensitive |
| Dej Solubility | Soluble heev hauv dej |
| Cia Temp. | Muab ntim rau hauv Qhuav, Khaws ntawm Chav Kub |
| COA & MSDS | Muaj |
| Kev faib tawm | Amino Acid Derivatives |
| Hom | Ruifu Tshuaj |
| Hazard Codes | Xis | RTECS | TIAB SA 2285000 |
| Risk Statements | 36/37/38 ib | F | 3-10-23 : kuv |
| Cov lus hais txog kev nyab xeeb | 26-36 : kuv | TSCA | Yog lawm |
| WGK Germany | 3 | HS Code | 2922491990 ib |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb Crystals los yog Crystalline hmoov, muaj zog acid saj | Ua raws |
| Kev txheeb xyuas | Infrared Absorption Spectrum yog tsim | Ua raws |
| Kev sib hloov tshwj xeeb [α]20/D | 6.1° ~ 7.8°C (C = 8,1N HCl) | + 6.3 ° |
| State of Solution (Kev xa tawm) | Ntshiab thiab tsis muaj xim ≥98.0% | 99.1% |
| Chloride (Cl) | 19.89 rau 20.29% | 20.16% |
| Sulfate (SO4) | ≤ 0.020% | <0.020% |
| Ammonium (NH4) | ≤ 0.020% | <0.020% |
| Hlau (Fe) | ≤10ppm | <10ppm |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤ 1.0ppm | <1.0ppm |
| Lwm yam Amino Acids | Chromatographically Tsis Detectable | Ua raws |
| Poob rau ziab | 8.5 txog 12.0% | 9.3% |
| Residue ntawm Ignition (Sulfated) | ≤0.10% | 0.06% |
| Assay | 98.5 mus rau 101.0% (Titration: on Dried Basis) | 99.8% |
| pH Test | 1.5 txog 2.0 (1% hauv dej) | 1.8 |
| Keeb kwm | Tsis yog Tsiaj Source | Ua raws |
| Residual Solvents | Ua raws | Ua raws |
| Xaus | Cov khoom no los ntawm Kev Tshawb Fawb Pom Zoo nrog Tus Qauv ntawm AJI97 | |
| Kev siv tseem ceeb | Amino Acids;Khoom noj khoom haus additives;Pharmaceutical Intermediates | |
Pob: Fluorinated Fwj, 25kg / hnab, 25kg / Cardboard Nruas, los yog raws li tus neeg yuav tsum tau muaj.
Cia txias:Khaws rau hauv cov thawv ntim khoom ntawm qhov chaw txias, qhuav thiab cua tshuab kom deb ntawm cov khoom tsis sib xws.Tiv thaiv los ntawm lub teeb thiab noo noo.
L-Cysteine Hydrochloride Monohydrate (CAS: 7048-04-6) AJI97 Test Method
Kev txheeb xyuas: Sib piv cov infrared absorption spectrum ntawm cov qauv nrog cov qauv ntawm cov txheej txheem potassium bromide disc.
Kev sib hloov tshwj xeeb [α]D20: Cov qauv qhuav, C = 8, 1mol / L HCl
State of Solution (Transmittance): 1.0g hauv 10ml ntawm H2O, spectrophotometer, 430nm, 10mm cell thickness.
Chloride (Cl): 350mg, B-2
Ammonium (NH4): A-1
Sulfate (SO4): 1.2g, (1), ref: 0.50ml ntawm 0.005mol / L H2SO4
Hlau (Fe): 1.5g, ref: 1.5ml ntawm Hlau Std.(0.01 mg/ml)
Heavy Metals (Pb): 2.0g, (1), pH = 7, ref: 2.0ml ntawm Pb Std.(0.01 mg/ml)
Arsenic (As2O3): 2.0g, (1), ref: 2.0ml ntawm As2O3 Std.
Lwm cov Amino Acids: Cov Qauv Xeem: 50μg, B-6-a, tswj;L-Cys · HCl · H2O 0.25μg
Poob rau ziab: Hauv lub tshuab nqus tsev, P2O5, ntawm chav sov li 20 teev.
Residue ntawm Ignition (Sulfated): AJI Test 13
Assay: Cov qauv qhuav, 250mg, 0.05mol / L I2 1ml = 15.762mg C3H7NO2S·HCl
pH Test: 1.0g hauv 100ml ntawm H2O
L-Cysteine Hydrochloride Monohydrate (CAS: 7048-04-6) USP35 Test Method
DEFINITION
Cysteine Hydrochloride yog L-Cysteine Hydrochloride Monohydrate thiab muaj NLT 98.5% thiab NMT 101.5% ntawm L-Cysteine Hydrochloride (C3H7NO2S·HCl), suav ntawm lub hauv paus qhuav.
IDENTIFICATION
A. INFRARED ABSORPTION <197K>
QHIA
txheej txheem
Qauv: 250 mg ntawm Cysteine Hydrochloride
Blank: Ua raws li qhia hauv Kev Tshawb Fawb Tsis Muaj Tus Qauv.
Titrimetric system
(Saib Titrimetry <541>)
Hom: Residual titration
Titrant: 0.1 N iodine VS
Tom ntej: 0.1N sodium thiosulfate VS
Endpoint detection: Visual
Kev tsom xam: Hloov cov qauv mus rau ib lub khob iodine.Ntxiv 20.0 mL dej thiab 4 g ntawm poov tshuaj iodide, thiab sib tov.Txias cov tshuaj nyob rau hauv ib da dej dej khov, thiab ntxiv 5 mL ntawm 3 N hydrochloric acid thiab 25.0 mL ntawm 0.1 N iodine VS.Ntxig lub stopper, thiab cia sawv ntsug hauv qhov tsaus ntuj rau 20 feeb.Titrate cov iodine ntau dhau nrog Back titrant.Ntxiv 3 mL ntawm lub hnub qub ch TS raws li qhov kawg ntawm qhov kawg.Raws li kev txiav txim siab Blank.Xam cov feem pua ntawm cysteine hydrochloride (C3H7NO2S·HCl) hauv cov qauv coj mus kuaj:
Cov txiaj ntsig = {[(VB − VS) × N × F]/W} × 100
VB = Back titrant ntim noj los ntawm Blank (mL)
VS = Back titrant ntim noj los ntawm Sample (mL)
N = qhov tseeb normality ntawm Back titrant (mEq/mL)
F = equivalency factor, 157.6 mg/mEq
W = Sample nyhav (mg)
Kev lees txais: 98.5% ~ 101.5% ntawm lub hauv paus qhuav
IMPURITIES
RESIDUEON ON IGNITION <281>: NMT 0.4%
chloride thiab sulfate, sulfate <221>
Standard tov: 0.10 mL ntawm 0.020 N sulfuric acid
Qauv: 0.33 g ntawm Cysteine Hydrochloride
Kev lees txais: NMT 0.03%
Hlau <241>: NMT 30ppm
HEAVY METALS, Method I <231>: NMT 15ppm
TXOJ CAI TSHIAB
N-Ethylmaleimide tov: 40 mg / mL ntawm N-ethylmaleimide hauv cawv
Cov txheej txheem kev daws teeb meem: Dissolve 20 mg ntawm USP L-Cysteine Hydrochloride RS hauv 10.0 mL dej.Ntxiv 10.0 mL ntawm N-Ethylmaleimide tov, thiab sib tov.Cia cov tshuaj sawv ntsug li 5 feeb ua ntej siv.
Standard tov: 0.05 mg / mL los ntawm Standard Tshuag tov nyob rau hauv dej.[ CEEB TOOM-Qhov kev daws teeb meem no muaj qhov sib npaug ntawm 0.5% ntawm cov qauv tshuaj.]
Kev daws teeb meem tsim nyog: Hloov 10 mg ntawm USP L-Tyrosine RS thiab 10 mL ntawm Standard Tshuag tov rau 25-mL ntim ntim.Dilute nrog dej rau ntim.
Piv txwv cov tshuaj: Hloov 0.2 g ntawm Cysteine Hydrochloride mus rau 10-mL volumetric hwj, yaj, thiab dilute nrog dej rau ntim.
Piv txwv li: Rau 5.0 mL ntawm cov qauv Tshuag tov ntxiv 5.0 mL ntawm N-Ethylmaleimide tov, thiab sib tov.Cia cov tshuaj sawv ntsug li 5 feeb ua ntej siv.
Chromatographic system (Saib Chromatography <621>, Thin-Layer Chromatography.)
Mode: TLC
Adsorbent: 0.25-mm txheej ntawm chromatographic silica gel sib tov
Daim ntawv ntim: 5μL
Tsim cov kuab tshuaj: Butyl cawv, glacial acetic acid, thiab dej (3: 1: 1)
Txau reagent: 2 mg / mL ntawm ninhydrin hauv kev sib xyaw ntawm butyl cawv thiab 2N acetic acid (95: 5)
Qhov system haum
Kev xav tau kev tsim nyog: Lub chromatogram ntawm qhov kev daws teeb meem tsim nyog nthuav tawm ob qhov sib cais kom meej.
Kev tsom xam
Cov Qauv: Cov qauv kev daws teeb meem, Kev daws teeb meem tsim nyog, thiab cov qauv kev daws teeb meem.
Tom qab cua qhuav lub phaj, tshuaj tsuag nrog tshuaj tsuag reagent, thiab cua sov ntawm 100 ° thiab 105 ° rau 15 min.Tshawb xyuas lub phaj hauv qab lub teeb dawb.
Kev lees txais cov qauv: Txhua qhov chaw thib ob ntawm cov qauv kev daws teeb meem tsis loj dua lossis hnyav dua li qhov chaw tseem ceeb ntawm Cov Txheej Txheem Kev daws teeb meem.
Tus kheej impurities: NMT 0.5%
Tag nrho impurities: NMT 2.0%
TSEEM CEEB
OPTICAL ROTATION, Kev sib hloov tshwj xeeb <781S>
Cov qauv tshuaj: 80 mg / mL hauv 6 N hydrochloric acid
Kev lees txais cov qauv: +5.7 ° txog +6.8 °
LOSSON DRYING <731>: Qhuav ib qho qauv ntawm chav tsev kub ntawm qhov siab tsis tshaj 5 hli ntawm mer cury rau 24 teev: nws poob 8.0% ~ 12.0% ntawm nws qhov hnyav.
TSEEM CEEB
PACKAGING THIAB STORAGE: Khaws rau hauv cov thawv kaw kom zoo.
USP REFERENCE STANDARDS <11>
USP L-Cysteine Hydrochloride RS
USP L-Tyrosine RS
Yuav Yuav Li Cas?Thov hu rauDr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
15 Xyoo Kev Paub?Peb muaj ntau tshaj li 15 xyoo ntawm kev paub nyob rau hauv kev tsim thiab export ntawm ib tug ntau yam ntawm zoo tshuaj intermediates los yog zoo tshuaj.
Kev lag luam loj?Muag rau kev lag luam hauv tsev, North America, Europe, India, Kauslim, Nyiv, Australia, thiab lwm yam.
Qhov zoo?Superior zoo, tus nqi pheej yig, kev pabcuam tshaj lij thiab kev txhawb nqa kev pabcuam, xa khoom sai.
ZooKev lees paub?Kev tswj xyuas nruj nruj.Cov cuab yeej tshaj lij rau kev txheeb xyuas suav nrog NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, KF, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, thiab lwm yam.
Cov qauv?Cov khoom lag luam feem ntau muab cov qauv dawb rau kev soj ntsuam zoo, tus nqi thauj khoom yuav tsum tau them los ntawm cov neeg siv khoom.
Factory Audit?Lub Hoobkas tshawb xyuas txais tos.Thov teem caij ua ntej.
MOQ?Tsis muaj MOQ.Kev txiav txim me me tau txais.
Lub sij hawm xa tuaj? Yog hais tias nyob rau hauv Tshuag, peb hnub shipping guaranteed.
Kev thauj mus los?Los ntawm Express (FedEx, DHL), los ntawm Cua, los ntawm hiav txwv.
Cov ntaub ntawv?Kev pab cuam tom qab muag: COA, MOA, ROS, MSDS, thiab lwm yam tuaj yeem muab tau.
Kev cai Synthesis?tuaj yeem muab cov kev pabcuam sib xyaw ua ke kom haum rau koj cov kev xav tau tshawb fawb.
Cov nqe lus them nqi?Proforma invoice yuav raug xa ua ntej tom qab kev pom zoo ntawm kev txiav txim, kaw peb cov ntaub ntawv hauv tuam txhab nyiaj.Kev Them Nyiaj los ntawm T / T (Telex Transfer), PayPal, Western Union, thiab lwm yam.
L-Cysteine Hydrochloride Monohydrate (H-Cys-OH·HCl·H2O) (CAS: 7048-04-6) yog dej-soluble ntsev ntawm cov amino acid uas tsis tseem ceeb L-cysteine.Nws yog dav siv hauv kev lag luam tshuaj, kev ua zaub mov, khoom noj khoom haus ntxiv, antioxidant, xim tuav tus neeg saib xyuas, kev tshawb fawb lom neeg, cov ntaub ntawv ntawm kev lag luam tshuaj thiab lwm yam.Nws yog tus txhawb nqa rau lub khob cij fermentation.Nws txhawb nqa daim ntawv ntawm glutelin thiab tiv thaiv kom tsis txhob muaj hnub nyoog.Kuj tseem siv rau hauv tshuaj pleev ib ce.Nws yog siv hauv cov kua txiv hmab txiv ntoo los tiv thaiv Vitamin C oxide.Nws muaj detoxification rau tshuaj lom ntawm acrylonitrile aromafic acid.Nws yog siv los tiv thaiv hluav taws xob puas tsuaj thiab kho mob bronchitis thiab liquefy hnoos qeev.L-Cysteine Hydrochloride MonohydrateFeem ntau yog siv nyob rau hauv Kev Kho Mob: cov tshuaj tsim tawm tuaj yeem kho leukopenia thiab leukopenia tshwm sim los ntawm kev tswj hwm ntawm cov tshuaj tiv thaiv kab mob thiab cov tshuaj radioactive tshuaj kho mob.Nws yog ib tug antidote rau hnyav hlau lom.Nws kuj yog siv los kho cov kab mob siab, thrombocytopenia, daim tawv nqaij rwj, tiv thaiv daim siab necrosis, thiab muaj cov teebmeem ntawm kev kho tracheitis thiab expectoration.Khoom noj khoom haus qib: khoom noj khoom haus ntxiv, antioxidants.Khob cij hloov, txhawb fermentation, tiv thaiv oxidation.Hauv cov khoom noj, raws li lub khob cij sib tsoo accelerator, tuaj yeem hloov lub khob cij thiab cov zaub mov tsw.Nws yog hygroscopic.oxidation qeeb thiab decomposition hauv huab cua.Soluble heev hauv dej.
-
3-(3-Pyridyl)-DL-Alanine CAS 17470-24-5 Purity ...
-
Z-Lys-OH CAS 2212-75-1 Nα-Cbz-L-Lysine Purity >...
-
Nα-Boc-D-Lysine CAS 106719-44-2 (Boc-D-Lys-OH) ...
-
H-Asp (OBzl)-OH CAS 2177-63-1 L-Aspartic Acid β-...
-
EDCHCl CAS 25952-53-8 Coupling Reagent Purity ...
-
Fmoc-Pro-OH CAS 71989-31-6 Fmoc-L-Proline Purit ...