New methylene blue

New methylene blue
Identifiers
CAS Number	1934–16–3 ;
3D model (JSmol)	Interactive image;
ChemSpider	16736255 ;
ECHA InfoCard	100.026.833
PubChem CID	73518;
UNII	5GCZ112BCN ;
	InChI InChI=1S/C18H22N3S.ClH/c1-5-19-13-9-17-15(7-11(13)3)21-16-8-12(4)14(20–6–2)10-18(16)22-17;/h7-10,19-20H,5-6H2,1-4H3;1H/q+1;/p-1 Key: NZYCYASKVWSANA-UHFFFAOYSA-M ; InChI=1/C18H22N3S.ClH/c1-5-19-13-9-17-15(7-11(13)3)21-16-8-12(4)14(20–6–2)10-18(16)22-17;/h7-10,19-20H,5-6H2,1-4H3;1H/q+1;/p-1 Key: NZYCYASKVWSANA-REWHXWOFAR;
	SMILES [Cl-].Cc1cc2nc3cc(C)c(cc3[s+]c2cc1NCC)NCC;
Properties
Chemical formula	C18H22N3S:SCl ZnCl2
Molar mass	484.22 g/mol
Melting point	239 °C (462 °F; 512 K)
Boiling point	Decomposes
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H332
Precautionary statements	P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P317, P321, P330, P362+P364, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

New methylene blue (NMB; sometimes Basic Blue 24) is an organic compound of the thiazine class of heterocycles. It is used as a stain and as an antimicrobial agent. It is classified as an azine dye, and the chromophore is a cation, the anion is often unspecified.

New methylene blue contains the word new in its name to differentiate the effectiveness of staining, between its predecessor methylene blue, the chemical structure of methylene blue, and the colors between the two.