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CAS號(hào):98-79-3
英文名稱:L-Pyroglutamic acid
英文同義詞:L-Pyr;PYR-OH;-Pyrog;Pidolic;PGLU-OH;-PyrogL;L-Pyr-OH;H-PYR-OH;L-Pyr-PH;Silk gum
中文名稱:L-焦谷氨酸
中文同義詞:氧脯氨酸;焦谷氨酸;麩內(nèi)醯胺酸;氧化脯氨酸;-焦谷氨酸;L-焦谷氨酸;J-焦谷氨酸;L-焦性膠氨酸;L-焦性麩質(zhì)酸;谷胱甘肽雜質(zhì)E
分子式:C5H7NO3
分子量:129.11
熔點(diǎn):160-163 °C(lit.)
比旋光度:-27.5 º (c=10, 1 N NaOH)
沸點(diǎn):239.15°C (rough estimate)
密度:1.3816 (rough estimate)
折射率:-10 ° (C=5, H2O)
儲(chǔ)存條件:2-8°C
溶解度:H2O: 1 M at 20 °C, clear, colorless
形態(tài):Crystalline Powder
酸度系數(shù)(pKa):3.32(at 25℃)
顏色:White to off-white
PH值:1.7 (50g/l, H2O, 20℃)
旋光性 (optical activity):[α]20/D 10.5±1°, c = 5% in H2O
水溶解性:10-15 g/100 mL (20 ºC)
Merck:14,8001
BRN:82132
穩(wěn)定性:Stable. Incompatible with bases, acids, strong oxidizing agents.
CAS 數(shù)據(jù)庫(kù):98-79-3(CAS DataBase Reference)
NIST化學(xué)物質(zhì)信息:Pidolic acid(98-79-3)
EPA化學(xué)物質(zhì)信息:5-Oxo-L-proline (98-79-3)