PROFLAVINE Property

Melting point:

281° (Schpff); mp 288° (Albert)

Boiling point:

338.61°C (rough estimate)

Density 

1.1847 (rough estimate)

refractive index 

1.6000 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

Water Solubility 

Soluble in water

solubility 

DMSO: 23 mg/mL (109.92 mM);Ethanol: 2 mg/mL (9.56 mM)

form 

powder to crystal

pka

9.65(at 20℃)

color 

Light yellow to Brown

EPA Substance Registry System

3,6-Acridinediamine (92-62-6)

Safety

HS Code 

2933.99.4600

Hazardous Substances Data

92-62-6(Hazardous Substances Data)

Toxicity

LD50 s.c. in mice: 0.14 g/kg (Rubbo)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

PROFLAVINE Chemical Properties,Usage,Production

Definition

ChEBI: An aminoacridine that is acridine that is substituted by amino groups at positions 3 and 6. A slow-acting bacteriostat that is effective against many Gram-positive bacteria (but ineffective against spores), its salts were formerly used for treatment of bur s and infected wounds.

Safety Profile

Poison by intravenous, intraperitoneal, and subcutaneous routes. Questionable carcinogen. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also other diaminoacridine entries.

Enzyme inhibitor

This dye (FWfree-base = 209.25 g/mol; CAS 92-62-6; orange-red solid; M.P. = 281 or 288°C; soluble in water; pKa = 9.65; solutions are light sensitive; insoluble in organic solvents such as benzene, diethyl ether, and chloroform), also known as proflavin and 3,6-acridinediamine, is a mutagen that intercalates in double-stranded DNA, inhibiting both DNA and RNA biosynthesis. Proflavine can also participate in the photooxidation of proteins (e.g., dopa decarboxylase. In addition, proflavine can inhibit a number of enzymes directly. For xample scriflavine, a mixture of proflavine with 3,6-diamino-10-methylacridinium chloride, inhibits protein kinase C. Target(s): L-amino-acid oxidase; carbonic anhydrase, or carbonate dehydratase, Ki ≈ 10 mM; chymotrypsin; DNA (cytosine-5-)-methyltransferase; DNA-directed RNA polymerase; dopa decarboxylase; F1Fo ATPase, or F1Fo ATP synthase, or H+-transporting two-sector ATPase; ficain, or ficin; glutamate decarboxylase; lysozyme; monoamine oxidase; NADH:cytochrome b5 reductase; nucleoside-triphosphatase, nuclear-envelope; papain; poly(ADP-ribose) glycohydrolase; polynucleotide adenylyltransferase, or poly(A) polymerase; pyruvate kinase; RNA-directed DNA polymerase; thrombin; tRNA adenylytltransferase; tRNA (guanine-N2-)-methyltransferase; tRNA cytidylyltransferase; tRNA methyltransferases; tRNA nucleotidyltransferase; and trypsin.

Purification Methods

Proclavine (3,6-diaminoacridine) [92-62-6] M 209.2, m 284-286o, pK 1 -2.7, pK 2 0 . 5 5 , pK 3 9.49. It crystallises from aqueous MeOH. The picrate crystallises from aqueous pyridine with m ~185o. [Beilstein 22 H 487, 22 I 649, 22 II 397, 22 III/IV 5487, 22/11 V 322.] For proflavin see 3,6-diaminoacridine hydrochloride.