L-Asparagine Anhydrous CAS 70-47-3 (H-Asn-OH) Assay 99.0 ~ 101.0% Hoobkas High Quality
Shanghai Ruifu Chemical Co., Ltd. yog cov chaw tsim khoom thiab cov chaw muag khoom ntawm L-Asparagine Anhydrous (Asn Anhydrous) (CAS: 70-47-3) nrog cov khoom zoo, muaj peev xwm ntau lawm 100 tons hauv ib xyoos.Ruifu Chemical muab ntau cov amino acids thiab derivatives.Peb tuaj yeem muab kev xa khoom thoob ntiaj teb, me me thiab ntau qhov ntau.Yog tias koj xav tau L-Asparagine Anhydrous,Please contact: alvin@ruifuchem.com
L-Asparagine Monohydrate (H-Asn-OH · H2O) CAS 5794-13-8
L-Asparagine Anhydrous (Asn Anhydrous; H-Asn-OH) CAS 70-47-3
| Tshuaj npe | L-Asparagine Anhydrous |
| Synonyms | Asn Anhydrous;Asn;H-Asn-OH;L-asparagine;L-(+)-Asparagine;Laevo-Asparagine;Asparagine;L-Aspartic Acid 4-Amide Anhydrous;(S)-2-Aminosuccinic Acid 4-Amide Anhydrous;Aspartamic acid;Agedoite;Altheine;L-2,4-Diamino-4-Oxobutanoic Acid;L-Aspartamine;L-β-Asparagine |
| Tshuag xwm txheej | Hauv Tshuag, Muaj Peev Xwm Ntau Lawm 100 Tons ib xyoos |
| CAS Nr | 70-47-3 ib |
| Molecular Formula | C4H8N2O3 |
| Molecular Luj | 132.12 Nws |
| Melting Point | 235 ℃ (dej.) (lit.) |
| Qhov ntom | 1.543 ib |
| rhiab heev | Hygroscopic |
| Dej Solubility | Soluble hauv dej, 20g / L (20 ℃) |
| Solubility | Soluble hauv Acids, Bases.Insoluble hauv Methanol, Ethanol, Ether, Benzene |
| tsw | Me ntsis qab zib |
| Cia Temp. | Muab ntim rau hauv Qhuav, Khaws ntawm Chav Kub |
| COA & MSDS | Muaj |
| Kev faib tawm | Amino Acids thiab Derivatives |
| Hom | Ruifu Tshuaj |
| Hazard Codes | Xn | F | 3-10 |
| Risk Statements | 20/21/22-36/37/38 ib | TSCA | Yog lawm |
| Cov lus hais txog kev nyab xeeb | 24/25-36-26 ib | Hazard Class | Irritant |
| RIDADR | UN 2811 6.1 / PGIII | HS Code | 2922491990 ib |
| WGK Germany | 3 |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb Crystals los yog Crystalline Hmoov | Ua raws |
| Kev txheeb xyuas | Infrared Absorption Spectrum yog tsim | Ua raws |
| Kev sib hloov tshwj xeeb [α]20/D | +34.2° to +36.5° (C = 10, 3N HCl) | + 34.8 ° C |
| Kev xa tawm | ≥98.0% | 98.6% |
| Chloride (Cl) | ≤ 0.020% | <0.020% |
| Sulfate (SO4) | ≤ 0.020% | <0.020% |
| Ammonium (NH4) | ≤0.100% | <0.100% |
| Hlau (Fe) | ≤10ppm | <10ppm |
| Heavy Metals (raws li Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤ 1.0ppm | <1.0ppm |
| Lwm yam Amino Acids | ≤ 1.00% | 0.79% |
| Poob rau ziab | ≤0.50% (105 ℃, 3 teev) | 0.17% |
| Residue ntawm Ignition (Sulfated) | ≤0.10% | 0.06% |
| Assay | 99.0 ~ 101.0% (raws li Kev Qhuab Qhia) | 99.3% |
| Tus nqi pH | 4.4 rau 6.4 | 4.6 |
| Microbiology Test | ||
| Tag Nrho Phaj suav | ≤1000cfu / g | Ua raws |
| Poov & Pwm | ≤100cfu / g | Ua raws |
| E. Coli | Tsis zoo | Tsis zoo |
| Salmonella | Tsis zoo | Tsis zoo |
| Xaus | Ua raws li AJI97 / USP35 Standard | |
Asparagine yog anhydrous, los yog muaj ib tug molecule ntawm dej hydration.Nws muaj NLT 98.0% thiab NMT 101.5% ntawm C4H8N2O3, raws li L-asparagine, suav ntawm lub hauv paus qhuav
IDENTIFICATION
• A. INFRARED ABSORPTION <197K>
[CEEB TOOM-Siv USP Asparagine Anhydrous RS thiab USP Asparagine Monohydrate RS rau kev ntsuam xyuas ntawm cov ntaub ntawv anhydrous thiab monohydrate ntawm Asparagine, feem.]
QHIA
• KEV PAB CUAM
Qauv: 130 mg
Titrimetric system
(Saib Titrimetry <541>.)
Hom: Direct titration
Titrant: 0.1 N perchloric acid VS
Tsis muaj: 3 mL ntawm formic acid nyob rau hauv 50 mL ntawm glacial acetic acid
Endpoint detection: Potentiometrically
Kev Ntsuas: Dissolve cov qauv nrog 3 mL ntawm formic acid hauv 50 mL ntawm glacial acetic acid.Ua ib qho kev txiav txim siab dawb paug.
Xam cov feem pua ntawm asparagine (C4H8N2O3) hauv cov qauv coj mus kuaj:
[(V − B) × N × F × 100]/W
V = ntim ntawm Titrant noj los ntawm Sample (mL)
B = ntim ntawm Titrant noj los ntawm Blank (mL)
N = qhov tseeb normality ntawm Titrant (mEq/mL)
F = qhov sib npaug ntawm asparagine, 132.1 mg / mEq
W = qhov hnyav ntawm tus qauv (mg)
Kev lees txais: 98.0% -101.5% ntawm lub hauv paus qhuav
IMPURITIES
• YUAV TSUM TAU TXAIS NYIAJ <281>
Qauv: 1.0g
Kev lees txais: NMT 0.1%
• LEAD <251>
Sample: 1 g
Tswj: 5 mL ntawm Diluted Standard Lead Solution (5 µg ntawm Pb)
Kev lees txais: NMT 5 ppm
• CHROMATOGRAPHIC PURITY
Standard tov: 0.05 mg/mL ntawm USP Asparagine Anhydrous RS los yog USP Asparagine Monohydrate RS
[CEEB TOOM-Siv USP Asparagine Anhydrous RS thiab USP Asparagine Monohydrate RS rau kev ntsuam xyuas ntawm cov ntaub ntawv anhydrous thiab monohydrate ntawm Asparagine, feem.]
Sample kua: 10 mg/mL
Chromatographic system
(Saib Chromatography <621>, Thin-Layer Chromatography.)
Adsorbent: 0.25-mm txheej ntawm chromatographic silica gel sib tov
Daim ntawv thov ntim: 5 µL
Tsim cov kuab tshuaj: Butyl cawv, glacial acetic acid, thiab dej (3: 1: 1)
Txau reagent: 2 mg / mL ntawm ninhydrin hauv butyl cawv thiab glacial acetic acid (19: 1)
Kev tsom xam
Qauv: Cov qauv kev daws teeb meem thiab cov qauv kev daws teeb meem
Ua raws li cov lus qhia hauv tshooj xeem, thiab tom qab ntawd ziab lub phaj ntawm 80 ° rau 30 feeb.Txau lub phaj nrog Spray reagent, kub ntawm 80 ° rau 10 min, thiab tshuaj xyuas hauv qab lub teeb dawb.
Kev lees txais cov qauv: Tsis muaj qhov chaw thib ob los ntawm cov qauv kev daws teeb meem loj dua lossis hnyav dua li qhov chaw tseem ceeb ntawm cov txheej txheem kev daws teeb meem (0.5%), thiab NMT 1.0% ntawm tag nrho cov impurities pom.
TSEEM CEEB
• OPTICAL ROTATION, Kev sib hloov tshwj xeeb <781S>
Cov qauv tshuaj: 10 mg / mL, hauv 6 N hydrochloric acid
Kev lees txais cov qauv: +33.0 ° txog +36.5 °, ntsuas ntawm 20 °
• MICROBIAL ENUMERATION TESTS <61> thiab TESTS FOR SPECIFIED
MICROORGANISMS <62>: Tag nrho cov aerobic microbial suav tsis tshaj 1000 cfu / g, thiab tag nrho cov pwm ua ke thiab cov poov xab suav tsis pub tshaj 100 cfu / g.
• LOSS RAU DRYING <731>: Qhuav ib qho qauv ntawm 130 ° rau 3 h: daim ntawv anhydrous poob NMT 1.0% ntawm nws qhov hnyav, thiab cov monohydrate poob ntawm 11.5% thiab 12.5% ntawm nws qhov hnyav.
TSEEM CEEB
• PACKAGING THIAB STORAGE: Khaws rau hauv cov thawv kaw kom zoo, tiv thaiv lub teeb.Khaws ntawm chav tsev kub.
• TAG NRHO: Sau npe los qhia seb nws puas yog anhydrous lossis monohydrate.
• USP REFERENCE STANDARDS <11>
USP Asparagine Anhydrous RS
USP Asparagine Monohydrate RS
Pob: Fluorinated Lub raj mis, Aluminium ntawv ci hnab, 25kg / Cardboard Nruas, lossis raws li cov neeg siv khoom xav tau.
Kev ruaj ntseg: Stable, tab sis tej zaum yuav ya raws-rhiab heev.Incompatible nrog muaj zog oxidizing neeg sawv cev.
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.
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.
Asparagine [lub cim Asn lossis N] yog ib qho tseem ceeb α-amino acid uas yog siv rau hauv biosynthesis ntawm cov protein.Nws muaj α-amino pawg thiab α-carboxylic acid pawg nrog rau cov saw carboxamide.Nws yog cais raws li ib tug polar [ntawm physiological pH], aliphatic amino acid.Nws tsis yog qhov tseem ceeb hauv tib neeg, thiab tuaj yeem nkag mus rau de novo synthesis hauv tib neeg lub cev.Los ntawm nam ntawm noob caj noob ces thaum lub sij hawm cov protein synthesis, nws yog encoded los ntawm cov codons AAU thiab AAC.L-Asparagine yog ib qho derivative ntawm aspartate.
Daim ntawv thov ntawm L-Asparagine Anhydrous (Asn Anhydrous) (CAS: 70-47-3)
1. Hauv cov tshuaj, L-Asparagine tuaj yeem siv los kho cov kab mob plawv, kab mob siab, ntshav siab, nrog rau kev tiv thaiv thiab rov ua kom qaug zog.Ua ke nrog ntau yam amino acids, nws tuaj yeem ua rau hauv cov amino acid infusion, siv los ua ammonia antidote, lub siab ua haujlwm txhawb nqa, tus neeg sawv cev qaug zog.
L-Asparagine yog ib yam tshuaj uas siv los txo cov ntshav siab, dilating bronchus (asthma), anti-peptic rwj thiab plab hnyuv.Txo cov ntshav siab, dilating bronchus (asthma), anti-peptic rwj thiab gastric dysfunction.Siv rau kab lis kev cai microbial, dej phwj kho ntawm acrylonitrile, thiab lwm yam.
2. Hauv kev lag luam khoom noj khoom haus, L-Asparagine yog cov khoom noj khoom haus zoo, ntxiv rau ntau hom dej txias;Nws tseem yog cov khoom siv tseem ceeb ntawm qab zib monosodium glutamate (aspartame)-aspartate phenylalanine methyl ester.
Asparagine muaj kev ua haujlwm zoo ntawm kev nthuav tawm tshiab thiab khaws cia.L-Asparagine dav siv los ua tshuaj npaj lossis nthuav tawm tshiab thiab tshuaj tua kab mob hauv kev ua zaub mov, thiab tuaj yeem hloov cov monosodium glutamate.
3. Hauv kev lag luam tshuaj, L-Asparagine tuaj yeem siv los ua cov khoom siv raw ntawm cov khoom siv hluavtaws thiab ua cov khoom noj khoom haus ntxiv ntawm cov tshuaj pleev ib ce.
