L-(-)-Threonine CAS 72-19-5 (H-Thr-OH) Assay 99.0 ~ 101.0% Hoobkas High Quality
Shanghai Ruifu Chemical Co., Ltd. yog tus xa khoom ntawm L-(-)-Threonine (H-Thr-OH; Abbreviated Thr lossis T) (CAS: 72-19-5) 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 muab cov amino acids mus rau thoob ntiaj teb cov qauv, xws li AJI, USP, EP, JP thiab FCC cov qauv.Peb tuaj yeem muab COA, xa khoom thoob ntiaj teb, me me thiab ntau ntau.Yog tias koj txaus siab rau L-(-)-Threonine,Please contact: alvin@ruifuchem.com
| Tshuaj npe | L-(-)-Threonine |
| Synonyms | L-Threonine;H-Thr-OH;L-Thr;Abbreviated Thr los yog T;Threonine;Laevo-Threonine;(S) - Threonine;(2S,3R)-2-Amino-3-Hydroxybutyric Acid;L-2-Amino-3-Hydroxybutyric Acid;(2S,3R)-(-)-Threonine |
| Tshuag xwm txheej | Hauv Tshuag, Muaj Peev Xwm Ntau Lawm 20000 Tons ib xyoos |
| CAS Nr | 72-19-5 ib |
| Molecular Formula | C4H9NO3 |
| Molecular Luj | 119.12 Nws |
| Melting Point | 256 ℃ (dej.) (lit.) |
| Solubility | Dawb Soluble hauv Formic Acid.Soluble hauv dej.Xyaum Insoluble hauv Ethanol thiab hauv Ether.Dissolves hauv Dilute Hydrochloric Acid |
| 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 | Xis - Irritant |
| Risk Statements | 36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. |
| Cov lus hais txog kev nyab xeeb | S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S26 - Nyob rau hauv rooj plaub ntawm qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| WGK Germany | 3 |
| TSCA | Yog lawm |
| HS Code | 2922491990 ib |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb Crystals lossis Crystalline Hmoov;Me ntsis qab zib | Ua raws |
| Kev txheeb xyuas | Infrared Absorption Spectrum yog tsim | Ua raws |
| Kev sib hloov tshwj xeeb [α]20/D | -27.6 ° txog -29.0 ° C = 6, H2O | -28.4°C dej |
| State of Solution (Kev xa tawm) | Ntshiab thiab tsis muaj xim ≥98.0% | 99.7% |
| Chloride (Cl) | ≤ 0.020% | <0.020% |
| 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 | ≤ 0.20% | 0.16% |
| Residue ntawm Ignition (Sulfated) | ≤0.10% | 0.04% |
| Assay | 99.0 txog 101.0% (Titration: Qhuav Basis) | 99.7% |
| pH Test | 5.2 txog 6.2 (1.0g hauv 20ml ntawm H2O) | 5.6 |
| Keeb kwm | Tsis yog Tsiaj Source | Ua raws |
| Residual Solvents | Ua raws | Ua raws |
| Xaus | Ntsib AJI97, USP 41-NF 36, EP 9.0, JP 17 thiab BP 2016 | |
| Txee lub neej | 24 lub hlis txij hnub tsim khoom yog tias khaws cia kom raug | |
| Kev siv tseem ceeb | Khoom noj khoom haus / Pub Additives;Pharmaceuticals;Khoom noj khoom haus ntxiv;lwm. | |
UA 97
L-(-)-Threonine (H-Thr-OH) (CAS: 72-19-5) AJI 97 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]20 / D: Cov Qauv Qhuav, C = 6, H2O
State of Solution (Transmittance): 1.0g hauv 10ml ntawm H2O, spectrophotometer, 430nm, 10mm cell thickness.
Chloride (Cl): 0.7g, A-1, ref: 0.40ml ntawm 0.01mol / L HCl
Ammonium (NH4): B-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), ref: 2.0ml ntawm Pb Std.(0.01 mg/ml)
Arsenic (As2O3): 2.0g, (1), ref: 2.0ml ntawm As2O3 Std.
Lwm Yam Amino Acids: Cov Qauv Xeem: 50μg, B-6-a, tswj: L-Thr 0.25μg
Poob rau ziab: ntawm 105 ℃ rau 3 teev.
Residue ntawm Ignition (Sulfated): AJI Test 13
Assay: Cov qauv qhuav, 120mg, (1), 3ml ntawm formic acid, 50ml ntawm glacial acetic acid, 0.1mol / L HCLO4 1ml = 11.912mg C4H9NO3
pH Test: 1.0g hauv 20ml ntawm H2O
USP35-NF30
DEFINITION
Threonine muaj NLT 98.5% thiab NMT 101.5% ntawm L-threonine (C4H9NO3), suav ntawm lub hauv paus qhuav.
IDENTIFICATION
A. INFRARED ABSORPTION <197K>
QHIA
txheej txheem
Qauv: 110 mg ntawm Threonine
Tsis muaj: Sib tov 3 mL ntawm formic acid thiab 50 mL ntawm glacial acetic acid.
Titrimetric system
(Saib Titrimetry <541>)
Hom: Direct titration
Titrant: 0.1 N perchloric acid VS
Endpoint detection: Potentiometric
Kev Ntsuas: Dissolve cov qauv hauv 3 mL ntawm formic acid thiab 50mL ntawm glacial acetic acid.Titrate nrog Titrant.Ua qhov kev txiav txim siab Blank.
Xam qhov feem pua ntawm Threonine (C4H9NO3) hauv cov qauv coj mus kuaj:
Result = {[(VS-VB) xNxF]/W} x100
VS = Titrant ntim tau noj los ntawm Cov Qauv (mL)
VB = Titrant ntim tau noj los ntawm Blank (mL)
N = qhov tseeb normality ntawm Titrant (mEq / mL)
F = qhov sib npaug, 105.1mg / mEq
W = Sample nyhav (mg)
Kev lees txais: 98.5% ~ 101.5% ntawm lub hauv paus qhuav
IMPURITIES
RESIDUEON IGNITION <281>: NMT 0.1%
chloride thiab sulfate, chloride <221>
Standard tov: 0.50mL ntawm 0.020 N hydrochloric acid
Qauv: 0.73g ntawm Threonine
Kev lees txais: NMT 0.05%
chloride thiab sulfate, sulfate <221>
Standard tov: 0.10mL ntawm 0.020 N sulfuric acid
Qauv: 0.33g ntawm Threonine
Kev lees txais: NMT 0.03%
Hlau <241>: NMT 30ppm
Rho tawm cov hauv qab no:
HEAVY METALS, Method I <231>: NMT 15ppm
TXOJ CAI TSHIAB
Diluent: Hydrochloric acid thiab dej (1:99)
Kev daws teeb meem tsim nyog: 0.4mg / mL txhua ntawm USP L-Threonine RS thiab USP L-Proline RS hauv Diluent
Kev daws teeb meem: 0.05mg / mL ntawm USP L-Threonine RS hauv Diluent.[CEEB TOOM-Qhov kev daws teeb meem no muaj qhov sib npaug sib npaug li 0.5% ntawm cov qauv tshuaj.]
Cov qauv tshuaj: 10mg / mL ntawm Threonine hauv 2 N hydrochloric acid
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 kev daws teeb meem tsim nyog, Cov qauv kev daws teeb meem, 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>
Sample tov: 60 mg / mL hauv dej
Kev lees txais cov qauv: -26.7 ° txog -29.1 °
PH <791>
Sample kua: 50 mg/mL tov
Kev lees txais: 5.0 ~ 6.5
LOSSON DRYING <731>: Qhuav ib qho qauv ntawm 105 ℃ rau 3 h: nws poob NMT 0.2% ntawm nws qhov hnyav.
TSEEM CEEB
PACKAGING THIAB STORAGE: Khaws rau hauv cov thawv kaw kom zoo.
USP REFERENCE STANDARDS <11>
USP L-Proline RS UAS
USP L-Threonine RS
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.
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-(-)-Threonine (H-Thr-OH; Abbreviated Thr los yog T) (CAS: 72-19-5) yog siv rau kev tshawb fawb biochemical, raws li amino acid khoom noj khoom haus tshuaj ntawm cov tshuaj, feem ntau yog siv nyob rau hauv kev kho mob ntawm anemia.Amino acid tshuaj.Khoom noj khoom haus ntxiv.
L-Threonine tuaj yeem siv rau hauv kev lag luam khoom noj hauv cov khoom noj khoom haus, ntxiv rau cov khoom noj, L-Threonine tuaj yeem txhim kho cov khoom noj muaj txiaj ntsig ntawm cov protein, kom cov khoom noj khoom haus txaus tsim nyog.L-Threonine thiab qabzib tau kub, tsw qab thiab yooj yim los tsim coke chocolate tsw nyob rau hauv ib tug tsw enhancer nyob rau hauv lub luag hauj lwm ua zaub mov.
L-Threonine nyob rau hauv kev lag luam pub, L-Threonine amino acids yuav siv tau raws li pub additives rau pub mov protein tau qhib txoj kev tshiab, L-Threonine tsis tsuas yog txhim kho cov khoom noj muaj txiaj ntsig ntawm pub, txo cov nqi noj.Tab sis kuj tau txais kev txhawb nqa tsiaj loj hlob thiab kev loj hlob, txhim khu kev tiv thaiv kab mob thiab ntau lwm yam txiaj ntsig.
L-Threonine yog tsim nyog rau cov tsiaj kom muaj kev loj hlob, cov tsiaj tsis tuaj yeem ua ke.Yuav tsum yog los ntawm cov khoom noj khoom haus.L-Threonine tsis muaj tuaj yeem ua rau txo cov tsiaj kom tsawg.Stunted, pub efficiency txo lub cev tsis muaj zog tiv thaiv cov tsos mob.L-Threonine yog qhov thib ob methionine, lysine, tryptophan, qhov tseem ceeb amino acids tom qab plaub tsiaj nyeg pub additive, L-Threonine ntawm cov tsiaj nyeg loj hlob thiab kev loj hlob, ntxiv dag zog rau fattening, lactation, qe ntau lawm pab txhawb lub luag hauj lwm.
Threonine yog ib qho tseem ceeb ntawm kev siv tshuaj tua kab mob uas tiv thaiv cov nplej, pastry thiab khoom noj siv mis, zoo li tryptophan, nws rejuvenates tib neeg lub cev thiab txhawb kev loj hlob ntawm cov me nyuam mos.Thaum siv rau hauv kev lag luam, threonine tuaj yeem moisten tib neeg tawv nqaij vim hydroxy hauv nws cov qauv. Nrog oligose, nws tiv thaiv tib neeg cov cell membranes, thiab accelerates lub synthesis ntawm phosphatide thiab oxidation ntawm fatty acid.Nrog rau cov tshuaj tiv thaiv fatty daim siab, threonine npaj ua hauj lwm raws li ib feem ntawm compound amino acid txhaj, Meanwhile, threonine yuav siv tau rau kev tsim cov monobactams, ib qho ntawm cov tshuaj tiv thaiv kab mob siab thiab qis qis.
Raws li amino acid rau forge, threonine yog dav ntxiv rau hauv cov zaub mov rau cov menyuam yug tshiab npua, npog npua, nqaij qaib, cw, eel thiab lwm yam.Nws tuaj yeem:
- Khaws qhov sib npaug ntawm cov amino acids hauv cov zaub mov thiab txhawb kev loj hlob ntawm cov tsiaj;
- Txhim kho cov nqaij zoo;
- Ua kom cov khoom noj muaj txiaj ntsig ntawm cov khoom siv raw uas muaj cov amino acid digestibility tsawg;
-Siv rau cov khoom noj uas tsis muaj protein ntau;
-Txiav tus nqi ntawm cov khoom siv raw khoom noj;
-Txo cov ntsiab lus nitrogen hauv cov zis thiab tso zis ntawm cov tsiaj kom tso tawm ammonia qeeb thiab cov ammonia concentration yog khaws cia hauv cov tsiaj qis.
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