different between dye vs isatin

English

Pronunciation

• IPA^(key): /da?/
• Rhymes: -a?
• Homophones: die, Di, Dai

Etymology 1

From Middle English deie, from Old English d?ah, d?ag (“color, hue, dye”), from Proto-Germanic *daug? (“colour, shade”), from *daugan?, *dug- (“to conceal, be dark”), from Proto-Indo-European *d?ewh?- (“to smoke, raise dust, camouflage”).

The verb is from Middle English deien, from Old English d?agian, from the noun.

Alternative forms

• (obsolete) die

Noun

dye (countable and uncountable, plural dyes)

1. A colourant, especially one that has an affinity to the substrate to which it is applied.
2. Any hue, color, or blee.

Synonyms

• colourant
• tincture

Derived terms

Translations

See also

• ink

Verb

dye (third-person singular simple present dyes, present participle dyeing, simple past and past participle dyed)

1. (transitive) To colour with dye, or as if with dye.

Synonyms

• (to color): tint, stain, shade, streak

Derived terms

Translations

Etymology 2

Noun

dye (plural dyce)

1. Alternative spelling of die (“singular of dice”)
   • 1748. David Hume, Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. § 46:

     If a dye were marked with one figure or number of spots on four sides, and with another figure or number of spots on the two remaining sides, it would be more probable, that the former would turn up than the latter;

Translations

Anagrams

• Dey, dey, ye'd, yed

Afrikaans

Noun

dye

1. plural of dy

Haitian Creole

Etymology

From French dieu (“god”).

Noun

dye

1. god

English

Noun

isatin (plural isatins)

1. (organic chemistry) The indole derivative 1H-indole-2,3-dione, used in the synthesis of dyes.
   • 1993, Vivette Glover, Merton Sandler, Tribulin and Isatin: An Update, Hajime Yasuhara, S. H. Parvez (editors), Monoamine Oxidase: Basic And Clinical Aspects, page 68,

     This finding suggests that the gut flora (absent, of course, in germ free animals) are responsible for the generation of most urinary isatin, but that the tissue material derives from a different source.

   • 2007, Shang-Tian Yang, Xiaoguang Liu, Yali Zhang, Chapter 4: Metabolic Engineering — Applications, Methods, and Challenges, Shang-Tian Yang (editor), Bioprocessing for Value-Added Products from Renewable Resources, page 81,

     One problem in large scale denim dyeing processes using biologically produced indigo is the undesirable red cast caused by indirubin, which is a structural isomer of indigo formed from indoxyl and isatin, a byproduct of the spontaneous oxidation reaction that converts indoxyl to indigo.

   • 2014, Kiran Gangarapu, Development of Isatin as CNS Agents: Anticonvulsant activity, Anchor Academic Publishing, page 7,

     Isatin reacts with formaldehyde and a variety of amines in the Mannich reaction to give their respective bases (10), in the absence of an amine, isatin and substituted isatin with formaldehyde give hydroxymethyl isatins (11).

Derived terms

• isatic acid, isatinic acid
• isatinyl

Translations

Anagrams

• Isanti