Chlorophenol Red

Also known as: CPR, 3,3'-Dichlorophenolsulfonephthalein, 3',3''-Dichlorophenolsulfonaphthalein, Dichlorophenolsulfonephthalein, 3,3-Bis(3-chloro-4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide, BETZ 0416, 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxo-2,1-benzoxathiol-3-yl]phenol

Chlorophenol Red (CAS 4430-20-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C19H12Cl2O5S and a molecular weight of 423.26700 g/mol. Key properties include a melting point of 261 °C, a boiling point of 583ºC at 760mmHg, a density of 1.605g/cm3 and a flash point of 306.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4430-20-0
Jingsj CID: J-48684-0
Molecular Formula: C₁₉H₁₂Cl₂O₅S
Molecular Weight: 423.26700 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	261 °C
Boiling Point	583ºC at 760mmHg
Density	1.605g/cm3
Flash Point	306.4ºC
Exact Mass	421.97800
PSA	92.21000
LogP	5.49620
Additional Property	insoluble

Customs & Trade Information

HS Code	2934991000
Summary	2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Chlorophenol Red?

The CAS number of Chlorophenol Red is 4430-20-0.

What are the molecular formula and molecular weight of Chlorophenol Red?

Chlorophenol Red has molecular formula C19H12Cl2O5S and molecular weight 423.26700 g/mol.

What are the upstream and downstream products of Chlorophenol Red?

For Chlorophenol Red, Upstream Products: 2-Sulfobenzoic anhydride, 2-Chlorophenol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Chlorophenol Red (CAS 4430-20-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48684-0 (accessed 2026-11-07).

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