Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Rhoduline acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

87-03-6

87-03-6 structure

87-03-6 structure

Name: Rhoduline acid
Chemical Name: 4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid
CAS Number: 87-03-6
Molecular Formula: C₂₀H₁₅NO₈S₂
Molecular Weight: 461.46500
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridine compound Chloropyridine
Create Date: 2018-12-24 10:15:53
Modify Date: 2026-07-11 13:03:01

Name	4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid
Synonyms	Di-J acid N,N-Bis(5-naphthol-7-sulfonic acid)amine Rhoduline Acid 2,2-DIMETHYL-6-NITRO-CHROMAN-4-ONE 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic 4,4'-Dihydroxy-7,7'-iminodi(naphthalene-2-sulfonic acid) 2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy 7,7'-Iminobis(4-hydroxy-2-naphthalenesulfonic acid) 4,4'-dihydroxy-7,7'-iminodi(naphthalene-2-sulphonic acid) 5.5'-Dioxy-(di-naphthyl-(2)-amin)-disulfonsaeure-(7.7') J Acid Imide 4,4'-dihydroxy-7,7'-iminodi(naphthalene-2-sulfonic acid) Di-J acid\|\|\|I Acid Imide\|\|\|NSC bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine Acid bis-mediated RW acid I Acid Imide 6,6'-Iminobis(1-hydroxy-3-sulfonaphthalene) 4-hydroxy-7-[(5-hydroxy-7-sulfo-naphthalen-2-yl)amino]naphthalene-2-sulfonic acid 4,4'-Dihydroxy-7,7'-imino-bis-naphthalin-2-sulfonsaeure 6,6'-Iminobis(1-hydroxynaphthalene-3-sulfonic acid) 2-Naphthalenesulfonic acid,7'-iminobis[4-hydroxy 4,4'-dihydroxy-7,7'-imino-bis-naphthalene-2-sulfonic acid 5,5'-dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid 4-hydroxy-7-[(5-hydroxy-7-sulfo-2-naphthyl)amino]naphthalene-2-sulfonic acid Bis-(5-hydroxy-7-sulfo-naphthyl-(2))-amin EINECS 201-719-4

Density	1.734
Molecular Formula	C₂₀H₁₅NO₈S₂
Molecular Weight	461.46500
Exact Mass	461.02400
PSA	177.99000
LogP	5.87580
Index of Refraction	1.802

HS Code	2934999090

87-02-5 structure

87-02-5

~%

87-03-6 structure

87-03-6

Literature: US2120660 , ;

Precursor 1
87-02-5
DownStream 0

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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