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Dioctyl phthalate Price Information Spec: First-grade product;99.5%;DOP, 200 kg/drum, purity ≥99%;≥99.0%;99%;Grade 1

Newest Price 1,644.47

Price Date 20261022

Day's Change +22.25

Day's Range 1,644.47 - 1,666.72

Month's Change -73.71

Month's Range 1,609.52 - 1,535.81

Year's Change +263.47

Year's Range 1,361.82 - 1,098.35

Opinions

What is the current development status and investment outlook for DOP plasticizer in China?

Watch the feedstock dynamic closely. 2-Ethylhexanol output reached 2.46 million tons in 2023, up 5.31%, which suggests ample supply for both DOP and DOTP producers. The real question is whether DOP producers can maintain export competitiveness as environmental compliance costs rise.

How does DOP compare with DOTP in performance, cost and regulatory acceptance for PVC applications?

The substitution trend is not absolute. DOP retains advantages in gelling speed and lower cost for commodity PVC products like flooring, artificial leather and general packaging. Buyers should evaluate application-specific requirements rather than switching blindly, especially where processing economics dominate over long-term performance.

Latest News

Oct. 14: Ex-works price of DOP from Zhenjiang Liancheng reduced

on Oct 14, 2026

Overall Analysis of DOP Import and Export Data for August 2026

on Sep 20, 2026

December 3, Shengtong Tai Chemical's Diethyl Phthalate Di-n-Octyl Ester is 7050 yuan.

on Dec 03, 2025

On November 27th, the price of DOP (Diethylene Glycol Dibenzoate) in Shengtong Tai Chemical was 6850 yuan.

on Nov 27, 2025

On October 21, Shengtong Tai Chemical's Dioctyl Phthalate was sold for 10,500 yuan.

on Oct 21, 2025

On October 11, Shengtong Tai Chemical's Diethylene Glycol Dioctyl Ester was priced at RMB 10,500.

on Oct 11, 2025

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Overview

Dioctyl phthalate (DOP, di-n-octyl phthalate, CAS 117-84-0) is a colorless, oily liquid with a low melting point and high boiling point, insoluble in water. It is a general-purpose plasticizer primarily used to soften PVC resins.

Plastics: the dominant plasticizer for PVC, improving flexibility, transparency, and processing flow in films, artificial leather, wire insulation, and flooring.
Rubber & coatings: used as a softener in rubber, adhesives, paints, and printing inks.
Electrical: provides adequate volume resistivity for cable insulation applications.
Medical: historically used in blood bags and tubing, subject to regulatory scrutiny.

China's DOP production has declined in recent years due to tightening environmental policies and health-related restrictions in the EU, US, and Hong Kong. Output is based on esterification of octanol (or isooctanol) with phthalic anhydride, and the industry faces growing substitution by non-phthalate plasticizers like DOTP.

Key domestic producers:
China Blue Chemical – major PVC and plasticizer producer.
Shandong Qilu Plasticizer – large-scale DOP manufacturer.
Nan Ya Plastics – diversified plastics and plasticizer supplier.

Properties

Name: Dioctyl phthalate

1,2-Benzenedicarbonic acid, dioctyl ester

1,2-Benzenedicarbonicacid,dioctylester

1,2-Benzenedicarboxylic acid, 1,2-dioctyl ester

1,2-Benzenedicarboxylic acid, dioctyl ester
CAS Number: 117-84-0
EINECS No.: 204-214-7
Risk Codes: S23;S24/25
Safety Description: R60;R61
HS Code: 2917320000

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