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1.59270

Supelco

Methylene blue (C.I. 52015)

redox indicator, Reag. Ph Eur

Synonym(s):

Methylene Blue trihydrate, Methylthioninium chloride, 3,7-Bis(dimethylamino)phenothiazinium chloride, Tetramethylthionine chloride

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About This Item

Empirical Formula (Hill Notation):
C16H18ClN3S · 3H2O
CAS Number:
7220-79-3
Molecular Weight:
373.90
Beilstein:
3599847
MDL number:
MFCD00012111
UNSPSC Code:
12352107
EC Index Number:
200-515-2
NACRES:
NA.05
Pricing and availability is not currently available.

Product Name

Methylene blue (C.I. 52015), Reag. Ph Eur

Agency

reag. Ph. Eur.
suitable for SM 4500 - NH3

Quality Level

200

form

powder

potency

1180 mg/kg LD50, oral (Rat)

loss

10-15% loss on drying, 110 °C

color

dark green

pH

3 (20 °C, 10 g/L in H2O)

mp

190 °C (dec.) (lit.)

solubility

50 g/L

bulk density

400‑600 kg/m3

λmax

660-665 nm at 50% in ethanol

storage temp.

2-30°C

SMILES string

[Cl-].CN(C)c1ccc2N=C3C=C\C(C=C3Sc2c1)=[N+](/C)C

InChI

1S/C16H18N3S.ClH/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;/h5-10H,1-4H3;1H/q+1;/p-1

InChI key

CXKWCBBOMKCUKX-UHFFFAOYSA-M

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Analysis Note

Appearance: Dark green powder, eventually with granular and bright parts.
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (ethanol 50 %): 660 - 665 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; ethanol 50 %): 2250 - 2750
Loss on drying (110 °C): 10 - 15 %

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. İs this product Pharmagrade,Usp certificiate? Use for human oraly.?

    1 answer

    1. This product is not a pharmaceutical grade product and is not suitable for human or animal use. Unfortunately, a pharmaceutical grade methylene blue is not currently offered.

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