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: 4-ethoxy-5-hydroxynaphthalene-2,7-disulphonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6837-94-1

6837-94-1 structure

6837-94-1 structure

Name: 4-ethoxy-5-hydroxynaphthalene-2,7-disulphonic acid
Chemical Name: 4-ethoxy-5-hydroxynaphthalene-2,7-disulphonic acid
CAS Number: 6837-94-1
Molecular Formula: C₁₂H₁₂O₈S₂
Molecular Weight: 348.34900
Create Date: 2016-03-08 13:27:27
Modify Date: 2025-08-30 18:14:41

Name	4-ethoxy-5-hydroxynaphthalene-2,7-disulphonic acid
Synonyms	Einecs 229-923-9 4-ethoxy-5-hydroxy-naphthalene-2,7-disulfonic acid 4-Ethoxy-5-hydroxy-2,7-naphthalenedisulfonic acid 4-Aethoxy-5-hydroxy-naphthalin-2,7-disulfonsaeure 8-ethoxy-1-naphthol-3,6-disulfonic acid

Molecular Formula	C₁₂H₁₂O₈S₂
Molecular Weight	348.34900
Exact Mass	347.99700
PSA	154.96000
LogP	3.59910

HS Code	2909500000

148-25-4 structure

148-25-4

546-74-7 structure

546-74-7

~%

6837-94-1 structure

6837-94-1

Literature: Bayer and Co. Patent: DE73741 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 3, p. 470

Precursor 2
148-25-4 546-74-7
DownStream 0

HS Code	2909500000
Summary	2909500000 ether-phenols, ether-alcohol-phenols and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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