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Khoom Taw qhia
(1R, 2S, 5R)-(-)-Menthol (L-Menthol) yog lub ntuj tsim ntawm Menthol. L-Menthol yog siv raws li: refreshing agent, zaub mov tsw, txias thiab antipruritic tshuaj, tshuaj carminative. Menthol crystals yog siv rau kev kho mob thiab tshuaj pleev ib ce.
Tshuaj lom los ntawm txoj hlab ntsha. Muaj tshuaj lom los ntawm kev noj, intraperitoneal, thiab subcutaneous txoj hauv kev. Qhov muag irritant. Cov ntaub ntawv hloov pauv tau tshaj tawm. Thaum rhuab mus rau decomposition nws emissions pa luam yeeb thiab irritating fumes.
SPECIFICATION NTAWM CAS: 2216-51-5 L-Menthol
Yam khoom | SPECIFICATION |
Solubility | 490 mg/l |
Xim | Tsis muaj xim rau dawb |
Boiling point | 212 ° C (lit.) |
Specific Gravity | 0.89 |
Pka | 15.30±0.60 |
BRN | 1902293 |
Alpha | -51 o (589nm, c=10, EtOH) |
Cia temp. | Khaws hauv qab no +30 ° C. |
Refractive Index | 1.46 |
Daim ntawv | Crystalline koob los yog Crystalline koob |
EPA Tshuaj Registry System | Levomenthol (2216-51-5) |
FEMA | 2665|MENTHOL RACEMIC |
InChIKey | NOOLISFMXDJSKH-KXUCPTDWSA-N |
Fp | 200?°F |
Vapor siab | 0.8 hli Hg (20 ° C) |
Qhov ntom | 0.89 g / mL ntawm 25 ° C (lit.) |
Dej Solubility | insoluble |
Melting point | 41-45 ° C (lit.) |
Merck | 14,5837 |
Kev ruaj ntseg | ruaj khov. |
Kev ua haujlwm kho qhov muag | [α]22/D 49°, c=10 in 95% ethanol |
NIST Chemistry Reference | Cyclhexanol, 5-methyl-2-(1-methylethyl)-, [1R-(1?alpha?,2?beta?,5?alpha?)]-(2216-51-5) |
CAS DataBase Reference | 2216-51-5 (CAS DataBase Reference) |
FAQ
1) Dab tsi' tus txheej txheem xaj?
A: Ua ntej peb tham txog kev txiav txim, cov lus qhia ntau lawm los ntawm email lossis TM. Tom qab ntawd peb muab koj PI rau koj qhov kev pom zoo. Koj yuav raug thov kom them ua ntej them tag nrho lossis tso nyiaj ua ntej peb mus rau hauv kev tsim khoom. Tom qab peb tau txais qhov tso nyiaj, peb pib ua qhov kev txiav txim. Peb feem ntau xav tau 7-15 hnub yog tias peb tsis' tsis muaj cov khoom hauv Tshuag.
Ua ntej cov khoom tiav, peb yuav tiv tauj koj kom paub meej cov khoom xa tuaj, thiab qhov nyiaj tshuav nyiaj li cas.
2) Koj tuaj yeem tshawb xyuas tag nrho cov khoom hauv cov kab ntau lawm li cas?
A: Peb muaj cov chaw soj ntsuam thiab kuaj cov khoom tiav. Peb xyuas cov khoom ntawm txhua batch thaum lawv mus rau qib tom ntej ntau lawm.
Cim npe nrov: 2216-51-5 l-menthol, nqe, hais, luv nqi, hauv Tshuag, kev muag
