β-乳球蛋白/β-Lactoglobulin BR,90% 250毫克 sigma 9045-23-2 2~8℃
1克 sigma
中文名称: β-乳球蛋白
英文名称: β-Lactoglobulin from bovine milk
产品规格: BR,90%
β-乳球蛋白包装: 250毫克/1克
CAS号:9045-23-2
级别:BR
含量 :≥90% (PAGE)
性状:白色货类白色冷冻干燥粉末。相对分子质量 35000~42000。含β-乳球蛋白A和B,能用色谱法分离。在琼脂电泳上可分离出β1和β2两种组分。溶于水和中性氯化钠稀溶液。等电点pI 5.1~5.2。比旋光度[α]25D-30.4°(乙酸盐缓冲液中,pH 4.8,μ=0.1)。 A1%1cm, 280nm9.3
用途:生化研究。蛋白质的物理化学研究。有机分子结合研究。SDS电泳用的非糖蛋白分子量标志。遗传学和病理研究。遗传标志制备的原材料。
保存:2~8℃
含量为99.98%~100.02%。
保质期:三年以内
β-乳球蛋白运输形式:快递、邮政、汽运、空运等运输
健康危害:吞咽有害。造成皮肤刺激。造成严重眼刺激。可能引起呼吸道刺激。
侵入途径:经口、经皮、吸入
急救措施:
1)皮肤接触:立即脱去污染的衣着,用大量流动清水冲洗 20~30 分钟。如有不适感,就医。
2)眼睛接触:立即提起眼睑,用大量流动清水或生理盐水彻底冲洗10~15分钟。如有不适感,就医。
3)吸入:迅速脱离现场至空气新鲜处。保持呼吸道通畅。如呼吸困难,给输氧。呼吸、心跳停止,立即进行心肺复苏术。
就医。
4)食入:饮水,禁止催吐。如有不适感,就医。
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β-乳球蛋白 48T/96T Homo sapiens (Human)
为了达到准确的实验结果,取用试剂时应遵守以下规则,以保证试剂不受污染和不变质:
(1)试剂不能与手接触。
(2)要用洁净的药勺,量筒或滴管取用试剂,绝对不准用同一种工具同时连续取用多种试剂。取完一种试剂后,应将工具洗净(药勺要擦干)后,方可取用另一种试剂。
(3)试剂取用后一定要将瓶塞盖紧,不可放错瓶盖和滴管,绝不允许张冠李戴,用完后将瓶放回原处。
(4)已取出的试剂不能再放回原试剂瓶内。
另外取用
β-乳球蛋白时应本着节约精神,尽可能少用,这样既便于操作和仔细观察现象,又能得到较好的实验结果。