Skip to main content
An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NALT Concept Space
U.S. Department of Agriculture

NALT Core

Concept information

  1. Research, Technology, Methods
  2. chemical substances
  3. technical chemicals
  4. dyes
  5. methylene blue

Preferred term

methylene blue

Type

  • Chemical

Definition

  • Information A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits guanylate cyclase, and has been used to treat cyanide poisoning and to lower levels of methemoglobin.

    Source: Medical Subject Headings 2015

    Type: Concept definition

Broader concept

Synonyms

  • methylthionine chloride
  • methylthioninium chloride

In other languages

URI

https://lod.nal.usda.gov/nalt/34982

Download this concept:

RDF/XML TURTLE JSON-LD Created 1/19/06, last modified 3/22/16