L-Menthol CAS 2216-51-5 Purity > 99.5% (GC) Hoobkas
Shanghai Ruifu Chemical Co., Ltd. yog cov chaw tsim khoom ntawm L-Menthol (CAS: 2216-51-5) nrog cov khoom zoo.Ruifu Chemical tuaj yeem muab kev xa khoom thoob ntiaj teb, tus nqi sib tw, kev pabcuam zoo heev, me me thiab ntau ntau muaj.Yuav L-Menthol,Please contact: alvin@ruifuchem.com
| Tshuaj npe | L-Menthol |
| Synonyms | L-(-)-Menthol;(-)-Menthol;L-Menthol;Laevo-Menthol;Menthol Crystals;(1R,2S,5R)-(-)-Menthol;(-)-p-Menthan-3-ol;2-Isopropyl-5-Methylcyclohexanol;(1R,2S,5R)-2-Isopropyl-5-Methylcyclohexanol;5-Methyl-2-(1-Methylethyl) Cyclohexanol |
| Tshuag xwm txheej | Hauv Tshuag, Kev Lag Luam Loj |
| CAS Nr | 2216-51-5 |
| Molecular Formula | C10H20O |
| Molecular Luj | 156.27 g / mol |
| Melting Point | 41.0 ~ 44.0 ℃ |
| Boiling Point | 211.0 ~ 213.0 ℃ |
| Qhov ntom | 0.89 g / mL ntawm 25 ℃ (lit.) |
| Dej Solubility | Insoluble hauv dej, 490 mg / l 25 ℃ |
| Solubility | Soluble heev hauv Methanol Ether |
| tsw | Neeg Esxias hom nrog cov yam ntxwv ntawm Natural Menthol |
| Cia Temp. | Qhov chaw txias & qhuav (2 ~ 8 ℃) |
| COA & MSDS | Muaj |
| Qeb | Khoom noj khoom haus additives |
| Hom | Ruifu Tshuaj |
| Cov khoom | Kev soj ntsuam Standards | Cov txiaj ntsig |
| Qhov tshwm sim | Tsis muaj xim, pob tshab prism zoo li lossis koob zoo li Crystals | Ua raws |
| Melting Point | 41.0 ~ 44.0 ℃ | 42.0 ~ 43.0 ℃ |
| Kev sib hloov tshwj xeeb [a]20/D | -51.0° to -45.0° (C = 10 in EtOH) | -49.9 ° |
| Limit of Nonvolatile Residue | ≤0.05% (105 ℃ rau 1 teev) | <0.05% |
| Residue ntawm Ignition | ≤0.10% | 0.03% |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Arsenic (As) Cov ntsiab lus | ≤ 3ppm | <3 ppm |
| Purity / Analysis Method | > 99.5% (GC) | 99.79% |
| Infrared Spectrum | Raws li tus qauv | Ua raws |
| NMR Spectrum | Raws li tus qauv | Ua raws |
| Solubility hauv EtOH | Tsis muaj xim, ntshiab, 100mg / ml | Hla |
| Xaus | Cov khoom tau raug kuaj & ua raws li cov lus qhia tshwj xeeb | |
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 lub thawv kaw nruj nreem.Khaws rau hauv qhov chaw txias, qhuav (2 ~ 8 ℃) thiab lub tsev tso cua txias kom deb ntawm cov khoom tsis sib xws.Tiv thaiv los ntawm lub teeb thiab noo noo.
Shipping:Xa mus thoob ntiaj teb los ntawm huab cua, 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
R37/38 - Kab mob ua pa thiab tawv nqaij.
R41 - Riam phom loj rau 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.
S39 - Hnav qhov muag / ntsej muag tiv thaiv.
S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag
S36 - Hnav khaub ncaws tiv thaiv zoo.
WGK Germany 2
RTECS OT0700000
TSCA Yes
HS Code 2906110000
Toxicity LD50 qhov ncauj hauv luav: 3300 mg/kg LD50 dermal Luav > 5000 mg/kg
L-Menthol (CAS: 2216-51-5) yog siv los ntxuav cov khoom, tshuaj pleev ib ce, tsw thiab fragrances, zaub mov thiab dej haus, kev tu tus kheej, tshuaj (mob me me), tshuaj txias thiab tshuaj tua kab mob, tshuaj carminative.
1. Menthol siv lead ua feem ntau yog siv los ua zaub mov.Nws cov ntxhiab tsw txawv tuaj yeem txhim kho qab los noj mov.
2. Menthol tuaj yeem muab ntxiv rau hauv ntau yam khoom siv ntxuav qhov ncauj xws li dentifrices, tshuaj yaug qhov ncauj, thiab tshuaj txhuam hniav.
3. Menthol siv lead ua kuj tuaj yeem siv rau hauv kev lag luam tshuaj.Raws li menthol muaj kev ua haujlwm ntawm inhibition thiab tuag tes tuag taw rau cov paj hlwb xaus, nws tuaj yeem siv los ua cov tshuaj tiv thaiv.
4. Menthol yog cov txuj lom uas siv tau rau hauv peb lub tebchaws.Nws yog tsuas yog siv rau flavoring tshuaj txhuam hniav, khoom qab zib thiab dej haus.Qhov ntau npaum li cas yog raws li kev xav tau ntau lawm, feem ntau 1100mg / kg hauv cov pos hniav;400mg / kg hauv khoom qab zib;130mg / kg hauv cov zaub mov ci;68mg / kg hauv dej khov;35mg / kg hauv cov dej qab zib.
5. GB2760-1996 qhia tias lub hlwb nyias nyias nyias raug tso cai siv ua txuj lom.GB2760-2001 qhia tias DL-type membrane hlwb kuj tau tso cai rau siv los ua zaub mov txuj lom Chemicalbook.Nws tuaj yeem siv los npaj cov txuj lom mint (10%-18%), thiab tuaj yeem siv rau hauv cov khoom qab zib (mint, gum), dej haus, dej khov, thiab lwm yam (ntau npaum li 0.054%-0.1%).
6. Ob leeg Menthol thiab racemic Menthol tuaj yeem siv los ua cov tshuaj tsw qab rau tshuaj txhuam hniav, tshuaj tsw qab, dej haus thiab khoom qab zib.Nyob rau hauv cov tshuaj, nws yog siv raws li ib tug stimulant, ua rau ntawm daim tawv nqaij los yog mucous daim nyias nyias, thiab muaj cov nyhuv ntawm txias thiab relieving khaus.Nws tuaj yeem siv los ua tshuaj tiv thaiv cua thaum noj qhov ncauj.Nws cov esters yog siv hauv cov tshuaj tsw qab thiab tshuaj.
Tshuaj lom los ntawm txoj hlab ntsha.Muaj tshuaj lom los ntawm kev noj tshuaj, intraperitoneal, thiab subcutaneous txoj hauv kev.Qhov muag tsis pom kev.Cov ntaub ntawv hloov pauv tau tshaj tawm.Thaum rhuab mus rau decomposition nws emissions pa luam yeeb thiab irritating fumes.
Menthol [1490-04-6]
Menthol yog cawv tau los ntawm ntau hom mint roj los yog npaj ua ke.Menthol tej zaum yuav yog levorotatory (L-Menthol), los ntawm ntuj los yog hluavtaws, los yog racemic (DL-Menthol).
Ntim thiab khaws cia-Txuag hauv cov thawv ntim nruj, nyiam dua ntawm chav tswj qhov kub thiab txias.
Labeling-Label nws los qhia seb nws yog levorotatory los yog racemic.
Kev txheeb xyuas-Thaum nws yog triturated nrog txog qhov sib npaug ntawm qhov hnyav ntawm camphor, ntawm chloral hydrate, lossis ntawm phenol, qhov sib tov liquefies.
Melting ntau ntawm L-Menthol <741>: ntawm 41 ° thiab 44 °
Congealing ntau ntawm DL-Menthol <651>-[CEEB TOOM-Ua qhov kev sim no nyiam dua hauv chav uas muaj qhov kub qis dua 30 ° thiab qhov txheeb ze av noo qis dua 50%.] Muab li 10 g ntawm racemic Menthol, yav tas los qhuav hauv ib lub desiccator tshaj silica. gel rau 24 teev, nyob rau hauv ib tug qhuav xeem raj ntawm 18- mus rau 20-mm sab hauv txoj kab uas hla, thiab yaj cov ntsiab lus ntawm ib tug kub ntawm txog 40 ° C.Ncua lub raj ntsuas dej hauv dej uas muaj qhov kub ntawm 23 ° txog 25 °, thiab do cov ntsiab lus ntawm lub raj txuas ntxiv nrog tus pas ntsuas kub, ua kom lub teeb ntawm tus pas ntsuas kub rau hauv cov kua.Racemic Menthol congeals ntawm qhov kub ntawm 27 ° thiab 28 ° C.Tsis ntev tom qab qhov kub thiab txias tau ruaj khov ntawm qhov chaw congealing, ntxiv ob peb mg ntawm qhuav racemic Menthol mus rau qhov sib xyaw ua ke, thiab txuas ntxiv cov nplawm: tom qab ob peb feeb qhov kub ntawm cov huab hwm coj sai sai nce mus rau 30.5 ° txog 32.0 °.
Kev sib hloov tshwj xeeb <781S>: nruab nrab ntawm -45 ° thiab -51 ° rau L-Menthol;ntawm -2 ° thiab +2 ° rau DL-Menthol.Kev tshuaj ntsuam xyuas: 100 mg ib mL, hauv cawv.
Txwv tsis pub cov residue-Volatilize 2 g, raug hnyav, nyob rau hauv ib tug tared qhib porcelain tais ntawm ib chav da dej, thiab qhuav qhov seem ntawm 105 ° rau 1 teev: cov residue hnyav tsis ntau tshaj 1 mg (0.05%).
Chromatographic purity-
Kev npaj tsim nyog-Dissolve decanol thiab Mentho hauv ether kom tau txais cov tshuaj uas muaj cov ntsiab lus ntawm 0.05 mg ntawm txhua ib mL.
Kuaj kev npaj- Dissolve 10 mg ntawm Menthol hauv 50 mL ntawm ether, thiab sib tov.Dilute 25 mL ntawm cov tshuaj no nrog ether rau 100mL, thiab sib tov.
Chromatographic system-Cov roj chromatograph yog nruab nrog lub ntsuas hluav taws xob-ionization thiab muaj 1.8-m × 2-mm kem ntim nrog 10% theem G16 ntawm kev txhawb nqa S1AB.Kem yog khaws cia ntawm li 170 °, qhov chaw txhaj tshuaj yog khaws cia ntawm li 260 °, thiab lub ntsuas ntsuas ntsuas tau khaws cia ntawm li 240 °.Qhuav helium yog siv los ua cov pa roj carbon dioxide ntawm tus nqi ntws li ntawm 50 mL ib feeb.Chromatograph qhov kev npaj tsim nyog, thiab sau cov lus teb siab tshaj plaws raws li qhia hauv Cov Txheej Txheem: lub sijhawm khaws cia ntawm menthol yog li 0.7 txheeb ze rau decanol.Hauv qhov tsim nyog chromatogram, qhov kev daws teeb meem R, ntawm 2 peaks tsis tsawg dua 2.5, thiab tus txheeb ze tus qauv sib txawv ntawm qhov piv ntawm cov lus teb ncov tau nrog Menthol rau qhov tau txais nrog decanol tsis ntau tshaj 2%.
Cov txheej txheem-Ntxig txog 2 µL ntawm Kev Ntsuas Kev Npaj rau hauv cov roj chromatograph, thiab ntsuas cov lus teb siab kawg.Lub ncov teb vim yog menthol tsis tsawg dua 97% ntawm tag nrho cov lus teb ncov, tsis suav nrog ib qho vim yog ether.
Npaj oxidizable tshuaj nyob rau hauv DL-Menthol-Place 500mg ntawm DL-Menthol nyob rau hauv ib tug huv, qhuav xeem raj, ntxiv 10 mL ntawm ib tug daws ntawm poov tshuaj permanganate, npaj los ntawm diluting 3 mL ntawm 0.1 N poov tshuaj permanganate nrog dej rau 100 mL, thiab qhov chaw. Lub raj xa dej hauv lub khob dej ntawm qhov kub ntawm 45 ° thiab 50 ° C.Tshem lub raj los ntawm da dej ntawm ib ntus ntawm 30 vib nas this, thiab sib tov sai sai: cov xim liab ntawm poov tshuaj permanganate tseem pom tseeb tom qab 5 feeb.
