Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Naphthalenesulfonicacid, 5-amino-6-ethoxy-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

118-28-5

118-28-5 structure

118-28-5 structure

Name: 2-Naphthalenesulfonicacid, 5-amino-6-ethoxy-
Chemical Name: 5-amino-6-ethoxynaphthalene-2-sulphonic acid
CAS Number: 118-28-5
Molecular Formula: C₁₂H₁₃NO₄S
Molecular Weight: 267.30100
Create Date: 2019-01-07 19:23:57
Modify Date: 2025-08-24 19:34:51

Name	5-amino-6-ethoxynaphthalene-2-sulphonic acid
Synonyms	6-Aethoxy-5-amino-naphthalin-2-sulfonsaeure 1-Amino-(naphthol-(2)-aethylaether)-sulfonsaeure-(6) Ethoxy Cleve's Acid 1-amino-2-ethoxy-6-sulpho-naphthalene 1-amino-2-ethoxynaphthalene-6-sulfonic acid 6-ethoxy-5-amino-naphthalene-2-sulfonic acid 5-AMINO-6-ETHOXY-2-NAPHTHALENE-SULFONIC ACID EINECS 204-240-9 1-amino-2-ethoxy-naphthalene-6-sulphonic acid

Density	1.413g/cm3
Molecular Formula	C₁₂H₁₃NO₄S
Molecular Weight	267.30100
Exact Mass	267.05700
PSA	98.00000
LogP	3.72940
Index of Refraction	1.653

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QK1290000

CHEMICAL NAME :: 2-Naphthalenesulfonic acid, 5-amino-6-ethoxy-

CAS REGISTRY NUMBER :: 118-28-5

BEILSTEIN REFERENCE NO. :: 3342860

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C12-H13-N-O4-S

MOLECULAR WEIGHT :: 267.32

WISWESSER LINE NOTATION :: L66J BZ CO2 HSWQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1061,1986 ** ACUTE TOXICITY DATA **

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 12 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1061,1986

HS Code	2922299090

Precursor 0
DownStream 1
93-01-6

HS Code	2922299090
Summary	2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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