英语词汇“pyrazole blue”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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pyrazole blue

pyrazole blue n. rare a blue indigoid dye whose molecule consists of two substituted pyrazolone rings linked by a carbon–carbon double bond.Formula: C₂₀H₁₆N₄O₂.

ΚΠ

1894 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) IV. 349/2 Pyrazole blue, C₂₀H₁₆N₄O₂.

1943 Thorpe's Dict. Appl. Chem. (ed. 4) VI. 456/2 Another dye of indigoid type, Pyrazole Blue..was discovered by Knorr..who showed its similarity to indigo.

1970 Tetrahedron 26 3449 Excess base in DMSO will cleave pyrazole-blue to yield the radical anion of 1-phenyl-3-methyl-2-pyrazoline-4,5-dione.

extracted from pyrazolen.

as lemmas

单词	pyrazole blue
释义	> as lemmas pyrazole blue pyrazole blue n. rare a blue indigoid dye whose molecule consists of two substituted pyrazolone rings linked by a carbon–carbon double bond.Formula: C₂₀H₁₆N₄O₂. ΚΠ 1894 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) IV. 349/2 Pyrazole blue, C₂₀H₁₆N₄O₂. 1943 Thorpe's Dict. Appl. Chem. (ed. 4) VI. 456/2 Another dye of indigoid type, Pyrazole Blue..was discovered by Knorr..who showed its similarity to indigo. 1970 Tetrahedron 26 3449 Excess base in DMSO will cleave pyrazole-blue to yield the radical anion of 1-phenyl-3-methyl-2-pyrazoline-4,5-dione. extracted from pyrazolen. < as lemmas
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