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1 : An orange-red dyestuff extracted from the saffron.
2 : A red dyestuff extracted from the safflower, and formerly used in dyeing wool, silk, and cotton pink and scarlet; -- called also Spanish red, China lake, and carthamin.
3 : An orange-red dyestuff prepared from certain nitro compounds of creosol, and used as a substitute for the safflower dye.
4 : An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type.
For safranin word found data is following....
1 : Safranin
An orange-red dyestuff extracted from the saffron.
2 : Safranin
A red dyestuff extracted from the safflower, and formerly used in dyeing wool, silk, and cotton pink and scarlet; -- called also Spanish red, China lake, and carthamin.
3 : Safranin
An orange-red dyestuff prepared from certain nitro compounds of creosol, and used as a substitute for the safflower dye.
4 : Safranine
An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type.
This word safranin uses (8) total characters with white space
This word safranin uses (8) total characters with white out space
This word safranin uses 6 unique characters: A F I N R S
Number of all permutations npr for safranin word is (720)
Number of all combination ncr for safranin word is (720)
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3D model (JSmol)
|Molar mass||350.85 g·mol−1|
Solubility in water
|GHS signal word||Danger|
GHS hazard statements
GHS precautionary statements
|P264, P280, P302+352, P305+351+338, P310, P332+313, P362|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|(what is ?)|
Safranin (also Safranin O or basic red 2) is a biological stain used in histology and cytology. Safranin is used as a counterstain in some staining protocols, colouring all cell nuclei red. This is the classic counterstain in both Gram stains, and endospore staining. It can also be used for the detection of cartilage, mucin and mast cell granules.
Safranin typically has the chemical structure shown at right (sometimes described as dimethyl safranin). There is also trimethyl safranin, which has an added methyl group in the ortho- position of the lower ring. Both compounds behave essentially identically in biological staining applications, and most manufacturers of safranin do not distinguish between the two. Commercial safranin preparations often contain a blend of both types.
Safranin is also used as redox indicator in analytical chemistry.
Safranines Safranines are the azonium compounds of symmetrical 2,8-dimethyl-3,7-diamino-phenazine. They are obtained by the joint oxidation of one molecule of a para-diamine with two molecules of a primary amine; by the condensation of para-aminoazo compounds with primary amines, and by the action of para-nitrosodialkylanilines with secondary bases such as diphenylmetaphenylenediamine. They are crystalline solids showing a characteristic green metallic lustre; they are readily soluble in water and dye blue or violet. They are strong bases and form stable monacid salts. Their alcoholic solution shows a yellow-red fluorescence. Phenosafranine is not very stable in the free state; its chloride forms green plates. It can be readily diazotized, and the diazonium salt when boiled with alcohol yields aposafranine or benzene induline, C18H12N3. F. Kehrmann showed that aposafranine could be diazotized in the presence of cold concentrated sulfuric acid, and the diazonium salt on boiling with alcohol yielded phenylphenazonium salts. Aposafranone, C18H12N2O, is formed by heating aposafranine with concentrated hydrochloric acid. These three compounds are perhaps to be represented as ortho- or as para-quinones. The "safranine" of commerce is an ortho-tolusafranine. The first aniline dye-stuff to be prepared on a manufacturing scale was mauveine, which was obtained by Sir William Henry Perkin by heating crude aniline with potassium bichromate and sulfuric acid. Mauveine was converted to parasafranine (1,8-dimethyl Safranine) by Perkin in 1878 by oxidative/reductive loss of the 7-N-para-tolyl group.
Another well known safranin is phenosafranine (C.I. 50200, 3,7-diamino-5-phenylphenazinium chloride)widely used as histological dye, photosensitizer and redox probe.
safranin (countable and uncountable, plural safranins)
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