NEWSLETTER
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KUBVUNZA ZVINOMamiriro ekufambisa & inokurudzirwa nzira yekutumira:
Nemhepo, negungwa kana nekutaura
Mamiriro ekuchengetedza:
Ramba uri munzvimbo ine rima, Yakavharwa pakaoma, Kamuri Tembiricha
Minimum Order Qty:
Kukurukurirana
Certification:
COA, HPLC, GC, HNMR, Assay, Mvura Yemukati(KF), TLC iripo
2-PYRROLIDONE-5-CARBOXYLICACIDMETHYLESTER;
METHYLL-PYROGLUTAMATE;
METHYL(S)-2-PYRROLIDINONE-5-CARBOXYLATE;
METHYL(S)-(+)-2-PYRROLIDONE-5-CARBOXYLATE;
L-PYR-OME;
(+)-L-PYROGLUTAMICACIDMETHYLESTER;
L-PYROGLUTAMICACIDMETHYLESTER;
H-PGLU-OME
Vanowanzo shandiswa kutakura hupfu.Uye vanogona kudzivirira kupenya kwezuva nemvura kuti zvisashata.
Iyo hard carton inogona kuchengetedza zvigadzirwa zvako kubva pakuputsika uye kunyorova.
Ester inogadzirwa kubva kune esterization reaction ye inorganic acid kana organic acid kana doro.Doro kana phenol kana acidic anhydride, doro uye ethylene, yemahara acidic asidhi uye mafuta enitrogen zvinobva kune zvinogonawo kugadzira ester.Iyo hydrogen paalpha-carbon iri muester molecules inorasikirwa nemolecular alcohol neimwe molecular ester pasi pemamiriro ealkaline kuti ibudise β-keto ester, iyo inonzi ester contraction reaction.Semuenzaniso, acetyl acetate inogadzirwa kugadzira acetyl ethyl acetate.Kuita uku kwakakosha zvakanyanya muorganic synthesis.
Zita re ester rinobva pazita rinoenderana re carboxylic acid uye doro kana phenol, se "imwe asidhi uye imwe ester".Circle esters inonzi lactone (lactone).Izvo zvemakemikari ester akafanana neamyl niche anhydride, iyo inowanzoita hydrolysis, doro uye ammonia reaction.Yakaderera-giredhi ester inonhuhwirira uye inoputika isina ruvara mvura, uye advanced ester yakasimba.Estes zvakakosha zvinonyungudutsa uye zvigadzirwa zvekugadzira, uye mamwe maester zvinodhaka pachazvo.Zvinoenderana nerudzi rweasidhi, ester inogona kukamurwa kuita inorganic acid ester uye organic acid ester.Etate, ethyl acetate ine mafuta ester, acetate inonhuhwirira ester, uye namanonate inonzi cyclic ester.
L-Pyr | D-Pyr | D,L-Pyr | L-Pyr-Ol |
D-Pyr-ol | L-Pyr-Oet | Boc-L-Pyr-Ol | Boc-L-Pyr-Oet |