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: 1,2-Benzenedicarboxylicacid, 3,4-dimethoxy-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

518-90-1

518-90-1 structure

518-90-1 structure

Name: 1,2-Benzenedicarboxylicacid, 3,4-dimethoxy-
Chemical Name: 3,4-dimethoxyphthalic acid
CAS Number: 518-90-1
Molecular Formula: C₁₀H₁₀O₆
Molecular Weight: 226.18300
Create Date: 2018-09-07 15:46:34
Modify Date: 2025-08-25 17:21:01

Name	3,4-dimethoxyphthalic acid
Synonyms	EINECS 208-259-3 Hemipinic acid

Density	1.391g/cm3
Boiling Point	396.2ºC at 760mmHg
Molecular Formula	C₁₀H₁₀O₆
Molecular Weight	226.18300
Flash Point	157.8ºC
Exact Mass	226.04800
PSA	93.06000
LogP	1.10020
Index of Refraction	1.572

HS Code	2918990090

Precursor 9
124-38-9 93-07-2 4463-33-6 519-05-1
10421-76-8 10134-52-8 70946-11-1 70946-00-8
30577-84-5
DownStream 10
91-16-7 99-50-3 81-61-8 709-09-1
636-93-1 17418-07-4 72517-27-2 1567-56-2
82784-82-5 4667-74-7

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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