L-Valinol CAS 2026-48-4 (H-Val-ol) Purity ≥99.0% (GC) E / E ≥99.0% Hoobkas
Shanghai Ruifu Chemical Co., Ltd. yog cov chaw tsim khoom ntawm L-Valinol (H-Val-ol) (CAS: 2026-48-4) nrog cov khoom zoo.Ruifu Chemical muab ntau cov amino acids.Peb tuaj yeem muab cov khoom xa tuaj thoob ntiaj teb, tus nqi sib tw, me me thiab ntau ntau muaj.Yuav L-Valinol,Please contact: alvin@ruifuchem.com
| Tshuaj npe | L-Valinol |
| Synonyms | H-Val-ol;L-Val-ol;L-(+)-Valinol;(+) - Valinol;H-Valinol;(S)-2-Amino-3-Methyl-1-Butanol;(S)-2-Amino-3-Methylbutan-1-ol |
| Tshuag xwm txheej | Hauv Tshuag, Muaj Peev Xwm Ntau Lawm rau Tons ib hlis |
| CAS Nr | 2026-48-4 |
| Molecular Formula | C5H13 Nr |
| Molecular Luj | 103.17 g / mol |
| Melting Point | 30.0 ~ 34.0 ℃ |
| Boiling Point | 80.0 ~ 81.0 ℃ / 8 hli Hg (lit.) |
| Qhov ntom | 0.926 g / mL ntawm 25 ℃ (lit.) |
| Refractive Index n20/D | 1.4538 ~ 1.4558 (lit.) |
| rhiab heev | Huab cua Sensitive |
| Dej Solubility | Soluble hauv dej |
| Cia Temp. | Qhov chaw txias & qhuav (2 ~ 8 ℃) |
| COA & MSDS | Muaj |
| Qeb | Amino cawv |
| Hom | Ruifu Tshuaj |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Dawb Khoom lossis Xim tsis muaj kua | Ua raws |
| Kev sib hloov tshwj xeeb [α]20/D | +16.0° ± 1.0° (C = 10, C2H5OH) | + 16.5 ° C |
| Melting Point | 30.0 ~ 34.0 ℃ | 30.0 ~ 33.0 ℃ |
| Dej los ntawm Karl Fischer | <0.50% | 0.15% |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Ib leeg Impurity | ≤0.50% | Ua raws |
| Tag nrho cov impurities | ≤ 1.00% | Ua raws |
| Purity / Analysis Method | ≥99.0% (GC) | 99.37% |
| E/E | ≥99.0% | Ua raws |
| Infrared Spectrum | Raws li tus qauv | Ua raws |
| Nco tseg | Cov khoom no tsis tshua muaj melting point, tej zaum yuav hloov lub xeev nyob rau hauv txawv ib puag ncig (khoom, kua los yog semi-solid) | |
| Xaus | Cov khoom tau raug kuaj & ua raws li cov specifications | |
Pob:Lub raj mis, Aluminium ntawv ci 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 txias thiab qhuav (2 ~ 8 ℃) warehouse kom deb ntawm cov khoom tsis sib xws.Nws yog rhiab heev rau huab cua.Tiv thaiv los ntawm lub teeb thiab noo noo.
Shipping:Xa mus thoob ntiaj teb los ntawm FedEx / DHL Express.Muab kev xa khoom sai thiab txhim khu kev qha.
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.
Hazard Symbols Xi - Irritant
Risk Codes
R36 - Khau qhov muag
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia
S26 - Nyob rau hauv rooj plaub ntawm qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S36 - Hnav khaub ncaws tiv thaiv zoo.
WGK Germany 3
FLUKA BRAND F CODE 10-23
HS Code 2922491990
Hazard Class IRRITANT
L-Valinol Method of Analysis (GC)
1 Lub hauv paus ntsiab lus Cov qauv yog vaporized los ntawm kab chromatographic kem kom cov khoom yuav tsum tau ntsuas tau sib cais, thiab lub ntsuas hluav taws xob hydrogen ionization siv los ntsuas tus lej.Lub ntsiab ncov ntsiab lus yog quantified raws li lub mechanism.
2. Ntaus
Carrier gas: ntau tshaj 99.95% nitrogen
Gas: ntau dua 99.95% hydrogen
auxiliary gas: ntau tshaj 99.95% cua
Tom ntej: Lunan Chemical Instrument Factory 6800A Gas Chromatograph
Kem: SE-54 capillary kem (30M)
Detector: Hydrogen nplaim taws ionization ntes.
3. Daim ntawv thov reagent: ethanol
4. Cov xwm txheej xeem
Qhov ntsuas kub ntawm qhov ntsuas: 250 ℃
Vaporizing chamber kub: 250 ℃
Kem kub: 160 ℃
Pre-kem siab: 0.05MPa
Hydrogen: 0.06MPa
Cua: 0.06MPa
Qauv loj: 0.1ul
Qhov ratio: 50: 1
Kev npaj ua qauv: Cov qauv yog yaj hauv ethanol
Txoj kev rau chiral tsom xam ntawm Valinol
Fmoc-Valinol tau npaj los ntawm cov tshuaj tiv thaiv ntawm 1mg / mg Valinol nrog Fmoc-OSU.1mg valerine hloov los ntawm Fmoc
Dissolved nrog 1ml ntawm MEOH, 2ml ntawm cov qauv raug txhaj rau hauv HPLC kev soj ntsuam ntaus ntawv txuas nrog chiral assay kem
Rau qhov ntws ntawm 0.5ml / s, FMOC-L-VALINOL ncov ntawm 19 vib nas this, FMOC-D-VALINOL ncov ntawm 58 vib nas this.
Txoj kev rau kev txiav txim siab ntawm Valinol rotation
1. Tom qab cov hmoov hloov pauv, qhib lub hwj huam hloov thiab tos 15 feeb kom lub teeb sodium ci ntsa iab.
2. Tig lub teeb lub teeb, thiab lub teeb sodium yog ci nyob rau hauv DC fais fab mov.
3. Npaj lub raj tshuaj ntsuam.
4, nyob rau hauv lub raj tau npaj los txhaj tshuaj trichloromethane hnyav, nias lub "zero" yuam sij, kom cov zaub yog xoom.
5. Tshem tawm cov kuab tshuaj dawb paug thiab txhaj cov qauv mus kuaj.
6, qauv npaj: hais 2.5g qauv nrog dej ntim rau 25ml.
7. Nias "Measurement" los tso saib thawj qhov kev ntsuas, nias "retest" kom pom cov txiaj ntsig thib ob, thiab nias "Retest" dua.
Qhov thib peb tshwm sim.
8. Kev suav:
20 * 100 hli
[a]=--------------------------------
D ml*----------------* 100
25
Hauv cov qauv, a yog tus nqi nruab nrab ntawm peb qhov kev ntsuas ntsuas.
l: xeem raj nrog ntev ntawm 1dm.
m: Qhov zoo ntawm cov qauv.
L-Valinol (H-Val-ol) (CAS: 2026-48-4), tuaj yeem siv rau hauv peptide synthesis, tuaj yeem siv los ua cov organic synthesis intermediate, tshuaj intermediate, biochemical reagent lossis tshuaj reagent.L-(+)-Valinol reacts nrog aldehydes thiab nitriles tsim imines thiab oxazolines, ntsig txog, rau asymmetric synthesis.Nws kuj yog siv rau kev npaj ntawm 4-isopropyloxazolidinones, ua hauj lwm nyob rau hauv stereocontrolled aldol thiab alkylation cov tshuaj tiv thaiv, synthesis ntawm chiral 2-thiazolidinethiones rau aldol tshuaj, asymmetric alkylation ntawm condensation khoom nrog keto acids, asymmetric tshua ntawm nws amidines thiab oxidation ntawm amidines. tiv thaiv derivative rau aldehyde.
