Molekula

Safranine O (C.I. 50240)

CAS 477-73-6 C20H19ClN4 MW 350.84 In stock

Safranine O (C.I. 50240) is a cationic dye used in histology, microbiology, and staining applications for biological specimens. It is also employed in dye-sensitized solar cells and as a fluorescent probe. Available with CAS number 477-73-6, molecular formula C20H19ClN4, and molecular weight 350.84 g/mol. Stored at ambient temperature. Hazard classification includes signal word Danger. Molekula supplies Safranine O from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Pricing & pack sizes

Pack sizes & pricing

£ GBP € EUR $ USD

5 g

£39.80 · per pack
25 g

£51.80 · per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Specifications

Property	Value
Appearance	Dark green powder
Melting Point	≥ 240°C
Loss on Drying	≤ 15.0% (at 110°C)
Absorptivity	≥ 875 (A1%, 1cm at λmax)
Wavelength of max absorption	530 - 534nm
Absorption ration	1.10 - 1.32 (λmax ± 15nm)

Storage & handling

Property	Value
Storage Temperature	Ambient
Shelf Life	60 months
Acidity	Base

Identification

Property	Value
CAS Number	477-73-6
Molecular Formula	C20H19ClN4
Molecular Weight	350.84
SMILES	CC1=CC2=C(C=C1N)[N+](=C3C=C(C(=CC3=N2)C)N)C4=CC=CC=C4.[Cl-]
REACH Code	Y110
TSCA Listed	Yes
HTS Code	32129000
Tariff Code	3212900000

Safety & GHS

Danger

Corrosive GHS05
Health Hazard GHS07

Hazard statements

H315 Causes skin irritation
H318 Causes serious eye damage

Precautionary statements

P280 Wear protective gloves/protective clothing/eye protection/face protection
P302+352 IF ON SKIN: Wash with soap and water
P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
P337+313 If eye irritation persists get medical advice/attention

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Safety Data Sheets (SDS)

Available in PT, IT, FR, ES, DE, EN.

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is Safranine O used for?

Safranine O is primarily used as a biological stain in histology and as a dye in textile and paper industries.

What is the chemical formula and molecular weight of Safranine O?

The formula is C20H19ClN4 with a molecular weight of 350.84 g/mol.

How should Safranine O be stored?

Store at ambient temperature, away from light and moisture, in a tightly closed container.

What grade of Safranine O is available?

Molekula supplies Safranine O in analytical grade for laboratory use.

Can Molekula supply Safranine O in bulk?

Yes, Molekula can supply Safranine O in bulk quantities; please contact our sales team for pricing and availability.

What documentation comes with a Safranine O order?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.

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