煙酸規(guī)格:99.5% 產(chǎn)地:瑞士-龍沙 包裝:25kg/桶 價(jià)格:65000元/噸
煙酸
Nicotinic acid
Cas號(hào): 59-67-6
分子式 C6H5NO2
分子量 123.11
別名吡啶-3-甲酸,3-吡啶羥酸,吡啶-3-羥酸,尼克酸,出現(xiàn)被限制詞語酸,氮苯酸-[3]
Niacin
Pyridine-3-carboxylic acid
3-Picolinic acid
Pellagra preventive factor
Vitamin B3
性狀 無氣味。味微酸。在空氣中不潮解而穩(wěn)定。能升華而不分解。溶解度: 17 g/L水 (20°C) ;微溶于乙醇(10 g/L 20°C), ,易溶于沸水、沸醇,溶于丙二醇、氯仿、氫氧化堿和碳酸堿溶液,不溶于醚及脂類溶劑。飽和水溶液的pH2.7。最大吸收波長263nm。
熔點(diǎn):238℃
密度:1.473
備注: 以上描述,僅作參考,并不表示您收到的產(chǎn)品,與此項(xiàng)描述完全相符,產(chǎn)品的出廠標(biāo)準(zhǔn),請(qǐng)參見質(zhì)量標(biāo)準(zhǔn)。
質(zhì)量標(biāo)準(zhǔn)
外觀Appearance 白色至類白色結(jié)晶粉末
紅外光譜鑒別Infrared spectrometry 符合
純度Purity ≥99.0% (HPLC)
純度Purity 99.5 ~ 100.5 % (中和滴定)
熔點(diǎn)Melting point 234°C - 240°C
熱水溶解試驗(yàn)solubility in water 合格
干燥損失Loss on drying <1.0 %
禁發(fā) 硫酸鹽灰分Sulfated ash <0.1 %
重金屬Heavy metals (as Pb) <20 ppm
氯離子Chloride(Cl) <200 ppm
相關(guān)物質(zhì)Related substances Pass test
品級(jí)Grade 用于細(xì)胞和昆蟲細(xì)胞培養(yǎng),≥99%
(for cell culture, for insect cell culture, ≥99%)
外觀appearance white to off-white powder
堿溶性solubility clear colorless to very faint yellow solution at 50mg/ml in 1M sodium hydroxide
紅外光譜IR spectrum conforms to structure
純度purity by sodium hydroxide titration
≥99%
純化purity by HPLC ≥99%
細(xì)胞培養(yǎng)測(cè)試cell culture test pass
昆蟲細(xì)胞培養(yǎng)測(cè)試insect cell test pass
品級(jí)Grade 用于植物細(xì)胞培養(yǎng),≥99%
(for plant cell culture, ≥99%)
外觀appearance white to off-white powder
堿溶性solubility clear colorless to very faint yellow solution at 50mg/ml in 1M sodium hydroxide
紅外光譜IR spectrum conforms to structure
純度purity by sodium hydroxide titration
≥99%
純化purity by HPLC ≥99%
植物細(xì)胞培養(yǎng)測(cè)試Plant cell culture test
pass
貯存 密封避光保存。
用途 營養(yǎng)劑,配制組織培養(yǎng)基。
聯(lián)合國編號(hào)
Risk: R36/37/38-
Safety : S26- S36-
Hazard : Xi -