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ibicuruzwa

4-Methylumbelliferone (CAS # 90-33-5)

Umutungo wa Shimi:

Inzira ya molekulari C10H8O3
Misa 176.17
Ubucucike 1.1958 (igereranya)
Ingingo yo gushonga 188.5-190 ° C (lit.)
Ingingo ya Boling 267.77 ° C (igereranya)
Amazi meza gushonga gato
Gukemura Gushonga muri Ethanol, aside acike, umuti wa alkali na ammonia, gushonga gato mumazi ashyushye, ether na chloroform.
Kugaragara Kurushinge
Ibara hanze-yera kugeza umuhondo
Uburebure ntarengwa (λmax) ['221nm, 251nm, 322nm']
Merk 14.4854
BRN 142217
pKa 7.79 (kuri 25 ℃)
Imiterere y'Ububiko 2-8 ° C.
Igihagararo Ihamye. Yaka. Ntibishobora gukoreshwa na okiside ikomeye.
Ironderero 1.5036 (igereranya)
MDL MFCD00006866
Ibintu bifatika na shimi Urushinge rumeze nka kristu. Gushonga ingingo ya 185-186 ° c (194-195 ° c) gushonga muri Ethanol, aside aside, umuti wa alkali na ammonia, gushonga gake mumazi ashyushye, ether na chloroform. Na acide sulfurike yibanze mu nshingano za fluorescence y'ubururu.
Koresha Iki gicuruzwa ni kolera, kandi ni intera ya sodium ya cromolyn anti-allergique.

Ibicuruzwa birambuye

Ibicuruzwa

Kode y'ingaruka R36 / 37/38 - Kurakaza amaso, sisitemu y'ubuhumekero n'uruhu.
R20 / 21/22 - Byangiza muguhumeka, guhura nuruhu kandi niba byamizwe.
Ibisobanuro byumutekano S26 - Mugihe uhuye namaso, kwoza ako kanya n'amazi menshi hanyuma ushakishe inama mubuvuzi.
S37 / 39 - Kwambara uturindantoki dukwiye no kurinda amaso / kurinda amaso
S36 - Kwambara imyenda ikingira.
WGK Ubudage 2
RTECS GN7000000
TSCA Yego
Kode ya HS 29329990
Icyitonderwa Kurakara
Uburozi LD50 umunwa mu mbeba: 3850mg / kg

 

Intangiriro

Oxymethocoumarin, izwi kandi nka vanillone, ni ifumbire mvaruganda.

 

Ubwiza:

Kugaragara: Oxymethaumarin ni kristaline yera cyangwa yumuhondo ikomeye ifite impumuro idasanzwe, isa na vanilla.

Gukemura: Oxymethocoumarin ishonga gato mumazi ashyushye, ariko ntibishobora gushonga mumazi akonje. Irashobora gushonga mumashanyarazi kama nka Ethanol, ether na chloroform.

Imiterere yimiti: Oxymethacoumarin irahagaze neza mumuti wa acide, ariko biroroshye kubora mumuti ukomeye wa alkaline cyangwa ubushyuhe bwinshi.

 

Koresha:

 

Uburyo:

Oxymethaumarin irashobora gukurwa muri vanilla karemano kandi ikomoka cyane cyane mubihingwa byatsi bya vanilla nkibishyimbo bya vanilla cyangwa ibyatsi bya vanilla. Byongeye kandi, irashobora kandi gutegurwa nuburyo bwa sintetike, mubisanzwe ikoresha coumarine karemano nkibikoresho fatizo, kandi igahinduka binyuze murukurikirane rwimiti.

 

Amakuru yumutekano:

Oxymethocoumarin isanzwe ifatwa nkumutekano, ariko reaction ya allergique irashobora kugaragara mubantu bamwe. Iyo ikozwe kandi igakoreshwa mu nganda, hagomba gufatwa ingamba zikwiye z'umutekano, nko kwambara uturindantoki two gukingira hamwe n'ibirahure birinda. Guhura nibintu nka acide ikomeye, alkalis ikomeye, na okiside bigomba kwirindwa kugirango wirinde akaga.


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