7-AMINO NAPHTHALENE-1,3,5-TRISULFONIC ACID

Name	7-Amino-1,3,5-Naphthalenetrisulfonic Acid
Synonyms	SULFO C ACID 2-NAPHTHYLAMINE-4,6,8-TRISULFONIC ACID 2 NAPHTHYLAMINE-4,6,8 TRISULPHONIC ACID 7-aminonaphthalene-1,3,5-trisulfonic acid 7-AMINO-1,3,5-NAPHTHALENETRISULFONIC ACID 7-Amino-1,3,5-Naphthalenetrisulfonic Acid 1,3,5-Naphthalenetrisulfonicacid,7-amino- 7-amino-1,3,5-naphthalenetrisulphonic acid 7-AMINO NAPHTHALENE-1,3,5-TRISULFONIC ACID 3-AMINO-1,5,7-NAPHTHALENETRISULFONIC ACID MONOSODIUM SALT
CAS	27310-25-4
EINECS	248-394-5
InChI	InChI=1/C10H9NO9S3/c11-5-1-7-8(9(2-5)22(15,16)17)3-6(21(12,13)14)4-10(7)23(18,19)20/h1-4H,11H2,(H,12,13,14)(H,15,16,17)(H,18,19,20)

Molecular Formula	C10H9NO9S3
Molar Mass	383.37
Density	1.974±0.06 g/cm3(Predicted)
pKa	-1.63±0.40(Predicted)
Storage Condition	Inert atmosphere,Room Temperature
Refractive Index	1.748
Physical and Chemical Properties	Dark brown with blue fluorescent solution. Stable in neutral and acid-base medium.
Use	It is an intermediate for the manufacture of a variety of light-colored varieties of reactive dyes

EPA chemical information	Information provided by: ofmpub.epa.gov (external link)
use	intermediate of dye 2-naphthylamine trisulfonic acid yarn, used to make reactive golden K-2RAZ, reactive brilliant orange K-7R, reactive tender yellow KN-7G, reactive yellow M-5R, reactive golden K-2RA, etc. is an intermediate for manufacturing a variety of light-colored reactive dyes
production method	the dried amino C acid (2-naphthylamine -4,8-disulfonic acid) is sulfonated with 20% fuming sulfuric acid, kept at 125-170 ℃ for 17h, diluted with ice water, neutralized with calcium carbonate into Congo red test paper without blue, and then diluted, filtered and concentrated.

Last Update：2024-04-09 20:52:54