Date published: 2026-8-1

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Methylene blue (CAS 61-73-4)

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Alternate Names:
Basic Blue 9
Application:
Methylene blue is a polyaromatic stain
CAS Number:
61-73-4
Molecular Weight:
319.85
Molecular Formula:
C16H18N3S•Cl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Methylene Blue is a sensitive stain used for RNA and ribonuclease. This chemical helps (in vitro) with cyanide poisoning. Additionally it helps in vitro with lowering the levels of methemoglobin. It also in vitro inhibits guanylate cyclase.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Methylene blue, 25 g

sc-215381B
25 g
$43.00

Methylene blue, 100 g

sc-215381
100 g
$104.00

Methylene blue, 500 g

sc-215381A
500 g
$328.00