Product description:

Acid red 52 is a dark red shade brown powder. Soluble in water, blue - red and fluorescent, also soluble in ethanol. The dye was orange in concentrated sulfuric acid and red after dilution. Aqueous solution appears blue - red when sodium hydroxide is added.

Product paramater:

Product name	Water soluble acid red 52 sulforhodamine B Kiton Red S C.I. 45100 400% for inks and dyeing wool
Synonyms	C.I. 45100; C.I. Acid Red 52; sulforhodamine B monosodium salt; sulforhodamine B cell culture tested; sulforhodamine B; Sulforhodamine sodium salt; Sulforhodamine; sodium 4-[6-(diethylamino)-3-(diethyliminio)-3H-xanthen-9-yl]benzene-1,3-disulfonate
CAS No.	3520-42-1
Molecular formula	C27H29N2NaO7S2
EINECS no.	222-529-8
PubChem ID	24853778
Appearance	Brown powder
Molecular Weight	580.6481
C.I.NO	45100
Strength	400%
Water solubility	Methanol: 1 mg/mL
Melting point	>350°C
Personal protective equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Storage conditions	At room temperature, away from light, ventilated and dry place, sealed storage
HS code	3204120000

Product pictures:

2022062015073629b2ead7d4ef4f90b000fd9302304f91

20220620150852f9f9e7c9388f4a30919dbafda7e7c8b6

20220620150853f2fe8ac2ef6b4b28aa3c456eebb7c73b

Certificate of Analysis:

Item			Indicator
			FAO/WHO
Content %≤			85
Dry weight loss(135℃) %≤			15.0
Chlorides and sulfates (in sodium salts) %≤			15.0
Water insoluble substance %≤			0.2
Ether extract ≤			0.2
Arsenic ≤			0.0003
Lead ≤			0.001
Heavy metal ≤			0.004
Deputy dye ≤			1.0
Other organic compounds 4-amino-1-naphthol sulfonic acid %≤			0.5 (Sum of both)

4-hydroxy-1-naphthol sulfonic acid %  Unsulphonated aromatic primary amine (In aniline) %≤			0.01

Application:

20_

Acid Red 52