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khoom

BOC-D-Alanine CAS Nr .: 7764-95-6

Chemical Property:

Molecular Formula C8H15 NPO 4
Molar Mass 189.21 Nws
Qhov ntom 1.2321 (kev kwv yees kwv yees)
Melting Point 81-84 ° C
Boling Point 324.46 ° C (kwv yees kwv yees)
Kev sib hloov tshwj xeeb (α) 26 º (c=2, EtOH)
Flash Point 147.9°C dej
Solubility Chloroform, DMSO, Methanol
Vapor Siab 6.39E-05mmHg ntawm 25 ° C
Qhov tshwm sim Dawb siv lead ua
Xim Dawb
BRN 2048396 ib
pKa 4.02 ± 0.10 (Kev kwv yees)
Kev cia khoom Muab ntim rau hauv qhuav, 2-8 ° C
Refractive Index 26 ° (C = 2, AcOH)
MDL TIAB SA 00063123
Physical thiab Chemical Properties Dawb crystalline hmoov; Insoluble hauv dej thiab roj av ether, soluble hauv ethyl acetate thiab acetic acid; mp 80-83 ℃; kev sib hloov kho qhov muag [α]20D 24.3 ° - 24.7 ° (0.5-2.0mg / ml, acetic acid).

Product Detail

Khoom cim npe

Hazard Cov Cim Xn – Ua phem
Risk Codes R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos.
R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij.
Kev nyab xeeb piav qhia S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
S36 - Hnav khaub ncaws tiv thaiv zoo.
S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
WGK Germany 3
HS Code 29241990 ib
Hazard Class IRRITANT

 

Taw qhia

Tert-butoxycarbonyl-D-alanine yog cov organic compound. Nws yog dawb mus rau lub teeb daj crystalline khoom uas yog soluble hauv dej thiab cawv-raws li kuab tshuaj.

 

Cov txheej txheem ntawm kev npaj ntawm tert-butoxycarbonyl-D-alanine feem ntau yog synthesized los ntawm cov tshuaj tiv thaiv. Ib txoj hauv kev yog los ua tert-butoxycarbonyl chloroformic acid nrog D-alanine los tsim tert-butoxycarbonyl-D-alanine.

 

Cov ntaub ntawv kev nyab xeeb: Tert-butoxycarbonyl-D-alanine feem ntau tuaj yeem suav tias muaj kev nyab xeeb nyob rau hauv ib txwm siv. Zoo li txhua yam tshuaj, kev siv thiab khaws cia yog qhov tseem ceeb heev. Kev nqos, nqus tau, lossis tiv nrog daim tawv nqaij thiab qhov muag yuav tsum zam. Cov khoom siv tiv thaiv xws li hnab looj tes, daim npog ntsej muag, thiab cov looj tsom iav tiv thaiv yuav tsum hnav thaum siv. Nyob rau hauv rooj plaub ntawm kev sib chwv los yog nqus pa, yaug tam sim ntawd nrog dej ntau thiab nrhiav kev kho mob tam sim ntawd. Thaum lub sij hawm cia, nws yuav tsum tau muab cia rau hauv ib qho chaw qhuav, txias, zoo-ventilated qhov chaw, deb ntawm hluav taws kub thiab flammable khoom. Cov kev cai hauv zos thiab cov txheej txheem ua haujlwm yuav tsum ua raws.


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