D-(+)-Cycloserine CAS 68-41-7 Assay ≥ 900μg/mg Factory High Quality

Cycloserine [68-41-7].
Ko te kaha o te Cycloserine kia kaua e iti iho i te 900µg o C3H6N2O2 ia mg.
Packaging me te rokiroki-Tiaki i roto i nga ipu kiki.
Paerewa Tohutoro USP <11>-
USP Cycloserine RS
Tautuhinga-Whakarewa mo te 1 mg i te 10 mL o te 0.1 N konutai waihā.Ki te 1 mL o te otinga ka taapirihia te 3 mL o te 1 N waikawa ahetiki me te 1 mL o te ranunga, kua rite mo te 1 haora i mua i te whakamahinga, o nga wahanga rite o te wairewa konutai nitroprusside (1 i roto i te 25) me te 4 N konutai waikawa: he tae kikorangi. ka whanake.
Ko nga hua o te whakamaaramatanga-Ko tona whakaurunga (tirohia te Spectrophotometry me te Marara-Marama <851>) i te 285 nm, ka whakatauhia i roto i te wairewa konutai konutai 0.1 N kei ​​roto 0.40 mg ia mL kaua e neke ake i te 0.80.
Te hurihanga motuhake <781S>: i waenga i te 108° me te 114°.Te otinga whakamatautau: 50 mg ia mL, i roto i te 2 N konutai waikawa.
Crystallinity <695>: ka tutuki nga whakaritenga
pH <791>: i waenganui i te 5.5 me te 6.5, i roto i te otinga (1 i roto i te 10).
Ngaronga i runga i te whakamaroke <731>-Ka whakamaroke i te 100 mg i roto i te ipuipu y-stoppered pounamu i roto i te korehau i te 60 ℃ mo te 3 haora: ka ngaro i te 1.0% o tona taumaha.
Te toenga i runga i te mura <281>: kaua e neke ake i te 0.5%, ka whakamakuku te toenga wera ki te 2 mL o te waikawa nitric me te 5 pata o te waikawa pungatara.
whakamātautau-
pH 6.8 Phosphate pūreirei-Whakaritea kia rite ki te whakahau i roto i te Buffer Solutions i raro i nga Solutions i te waahanga Reagents, Indicators, and Solutions.
Wāhanga pūkoro-Whakarewa te 0.5 g konutai 1-decanesulfonate ki te 800 mL wai, tāpirihia te 50 mL o te acetonitrile me te 5 mL o te waikawa acetic glacial, ka uru.Whakaritea ki te 1 N konutai waihā ki te pH 4.4.Tātari, me te degas.Whakaritea nga whakarereketanga mehemea e tika ana y (tirohia te Whakaritenga Pūnaha i raro i te Chromatography <621>).
Whakariterite Paerewa-Ine ine te wetewete i te rahinga tika o te USP Cycloserine RS i roto i te pH 6.8 Phosphate buffer ki te whiwhi i tetahi otinga e mohiotia ana mo te 0.4 mg ia mL.
Te whakarite whakamatautau-Whakawhitihia te 20 mg o te Cycloserine, i tika te pauna, ki te 50-mL ipu rōrahi, memeha ki roto, me te waimeha ki te pH 6.8 Phosphate parepare ki te rōrahi, ka uru.
Pūnaha Chromatographic (tirohia te Chromatography <621>)-Ko te chromatograph wai he mea rite ki te 219-nm kaitahuri me te 4.6-mm × 25-cm tīwae kei roto 5- µm tarapi L1.Ko te tere rere he 1 mL ia meneti.Ka mau tonu te mahana o te pou ki te 30°.Chromatograph the Standard preparation, and record the peak responses as directed for Procedure: kaua e neke ake i te 1.8 te tauwehe hiku;me te inenga paerewa mo nga werohanga tukurua kaua e neke ake i te 2.0%.
Tikanga-Tukuhia nga pukapuka rite (e tata ana ki te 10 µL) o te whakaritenga Paerewa me te whakaritenga Whakatau ki te chromatograph, tuhia nga chromatograms, me te ine i nga whakautu teitei mo te cycloserine.Tātaihia te rahinga, i roto i te µg, o C3H6N2O2 i ia mg o Cycloserine i tangohia e te tauira:
50,000(C/W)(rU / rS)
ko C te kukū, i te mg ia mL, o te USP Cycloserine RS i roto i te whakaritenga Paerewa;Ko te W ko te rahinga, i roto i te mg, o te Cycloserine i tangohia hei whakarite i te whakaritenga whakamatautau;a ko rU me rS nga whakautu teitei mo te cycloserine i whiwhi mai i te whakarite Whakamaatau me te whakaritenga Paerewa.