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Sodium hydrogen phthalate

Also known as: Monosodium phthalate, Phthalic acid monosodium salt, 1,2-Benzenedicarboxylic acid, monosodium salt, 1,2-Benzenedicarboxylate, sodium salt (1:1), Sodium hydrogen phthalate hemihydrate, Sodium phthalate monobasic

Sodium hydrogen phthalate (CAS 827-27-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NaO4 and a molecular weight of 187.105 g/mol. Key property: a melting point of 230ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
827-27-0
Jingsj CID
J-1121807-8
Molecular Formula
C8H5NaO4
Molecular Weight
187.105 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point230ºC
Exact Mass187.001282
PSA77.43000

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Sodium hydrogen phthalate?

The CAS number of Sodium hydrogen phthalate is 827-27-0.

What are the molecular formula and molecular weight of Sodium hydrogen phthalate?

Sodium hydrogen phthalate has molecular formula C8H5NaO4 and molecular weight 187.105 g/mol.

What are the upstream and downstream products of Sodium hydrogen phthalate?

For Sodium hydrogen phthalate, Downstream Products: 4-Bromophthalic acid, 4-Bromophthalonitrile, 4-Bromophthalimide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Sodium hydrogen phthalate (CAS 827-27-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1121807-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.