Methyl blue
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Methyl blue
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CAS No:
28983-56-4
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Formula:
C37H29N3O9S3.2Na
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Chemical Name:
Methyl blue
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Synonyms:
Benzenesulfonic acid,[[4-[bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-,sodium salt (1:2);C.I. Acid Blue 93,disodium salt;C.I. Acid Blue 93;Methyl blue;Benzenesulfonic acid,[[4-[bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-,disodium salt;C.I. 42780;Acid Leather Blue HER;Brilliant Lake Blue G;Helvetia Blue;Helvetia Blue I;Helvetia Blue Pure I;Ink Blue;Ink Blue G;Ink Blue BA;Ink Blue BJTBN 80;Ink Blue M;Ink Blue N;Ink Blue BJTBNA 80;Ink Blue BJTN;Ink Blue Special;Ink Blue WGS;Ink Blue WRS;Methyl blue (biological stain);Orient Soluble Blue OBB;Pure Soluble Blue I;Silk Blue H;Solar Soluble Blue BN;Sky Blue G;Soluble Blue;Special Soluble Blue HT;Water Blue B;Water Blue IN;Water Blue I Old Type 1240a;Soluble Blue 8B;Acid Blue 93;Cotton blue;Orient Soluble Blue OBC;Ink Blue BJT;Aniline Blue;Water Blue 6B;Acid Blue FG;Soluble Blue OBB;Acid Ink Blue G;Conacid Blue NC;Vicoacid Ink Blue;Dycosacid Ink Blue G;Orient Soluble Blue OBX;Soluble Blue OBX;1324-79-4
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CAS No:
Description
Methyl blue belongs to the group of triaminotriphenylmethane dyes. Methyl blue is widely used as antiseptic dye in polychrome staining method and has applications in histological and microbiological staining solutions. Methyl blue has been used as a model to study the effect of various catalysts on photodegradation of dyes[1][2].
Characteristics
230.33000
10.31770
Red to Brown powder
>250℃
Soluble in water
Store at RT.
LD50 orally in Rabbit: > 5000 mg/kg
Safety Information
NONH for all modes of transport
3
22-36/37/38
22-24/25-36/37-26
DB5044700
Xn
Stable. Incompatible with strong oxidizing agents.
P261-P305 + P351 + P338
H302-H315-H319-H335
Not Classified
Methyl blue Use and Manufacturing
After basic fuchsin and aniline are condensed, they are sulfonated with fuming sulfuric acid, neutralized with sodium carbonate, and acidified with sulfuric acid. Magenta base (100%) 370 Sulfuric acid 1512 Aniline (99%) 460 Fuming sulfuric acid (104.5%) 1016 Benzoic acid 10 Yuan Ming powder 7 Sodium carbonate (98%) 255
As a coloring; dye for cotton and silk; biological stain.
Benzenesulfonic acid, [[4-[bis[4-[(sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-, sodium salt (1:2): ACTIVE
EPA Safer Chemical Functional Use Classes -> Colorants|Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues
Computed Properties
Molecular Weight:755.8
XLogP3:5.7
Hydrogen Bond Donor Count:5
Hydrogen Bond Acceptor Count:11
Rotatable Bond Count:9
Exact Mass:755.10659303
Monoisotopic Mass:755.10659303
Topological Polar Surface Area:229
Heavy Atom Count:52
Complexity:1560
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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