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单词 primuline
释义

primuline

英汉-汉英词典
报春花灵
词组 | 习惯用语
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  • praline n. 果仁糖(胡桃糖果的一种)
  • promulgate vt. 发布;颁布;发表
  • promulgation n. 公布;颁布;普及;宣传
  • primulin 樱草素
primuline [染料] 樱草灵

网络短语:
Primuline 樱草黄; 樱草灵; 报春花灵; 主要体觉皮质区;
primuline yellow 樱草灵黄
英语百科

Primuline

Primuline is a dye containing the benzothiazole ring system. Primuline itself is also known as Direct yellow 7, Carnotine, or C.I. 49010.

The primulines are considered derivatives of dehydrothiotoluidine (aminobenzenyltoluylmercaptan), which is obtained when para-toluidine is heated with sulfur for eighteen hours at 180-190 °C and then for a further six hours at 200-220 °C Dehydrothiotoluidine is not itself a dye-stuff, but if the heating is carried out at a higher temperature in the presence of more sulfur, then a base is formed, which gives primuline yellow upon sulfonation.

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