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Isophthalic acid

BGC Id:110114485947
CAS No:121-91-5
Synonyms:kyselinaisoftalova ; acide isophtalique ; isophthalic ; meta-phthalicacid ; ipa)isophthalic ; isophthalic acid ; 1,3-phthalicacid ; acideisophtalique ; isophthalate ; m-phthalic acid
Molecular Formula:C8H6O4
Molecular Weight:166.13084
EINECS:204-506-4
Structural Formula

2026 - The most valued supplier

The following 18 notable providers have been checked and can be recommended.
Chemical-Suppliers
Sancai Industry
PURITY 99.9%MIN META TOLUIC ACID PPM 150 PPM/MAX 3CBA PPM 25PPM/MAX FE PPM 2.0MAX CO PPM 2.0MAX MN PPM 2.0 MAX MOISTURE WT 0.1%MAX ASH CONTENT 15PPM

Chemical-Suppliers
BLD Pharmatech
Smile code: O=C(O)C1=CC=CC(C(O)=O)=C1 MDL Number: MFCD00002516 Purity : 98% Available in stock: 16020 g
Chemical-Suppliers
Leap Chem
Molecular Formula: C8H6O4 Molecular Weight: 166.13084

The last intensive check and update was carried out on 2026/03/01.

Identify

Synonyms:
kyselinaisoftalova ; acide isophtalique ; isophthalic ; meta-phthalicacid ; ipa)isophthalic ; isophthalic acid ; 1,3-phthalicacid ; acideisophtalique ; isophthalate ; m-phthalic acid
CAS:
121-91-5
EINECS:
204-506-4
Molecular Formula:
C8H6O4
MDL:
MFCD00002516
SMILES:
CCCCCCCCCCCCCCCCCC(=O)OCCCC

Properties

Molecular Weight:
166.13084 g·mol−1
Density:
1,54 g/cm3
Melting point:
341-343 °C(lit.)
Solubility:
Soluble in 1N NaOH
download Download Molfile

Suppliers

ICC Chemical Corporation

Global manufacturer and supplier of chemical and pharmaceutical ingredients. ICC Chemical Corporation is an integral part of the ICC Industries Inc. group of companies. (www.iccindustries.com). Phthalic anhydride will be also provided by us. ICC Chemical Corporation markets and distributes chemical, plastic and pharmaceutical products, always acting as a principal and never as a middleman, continuing a tradition that began over fifty years ago. Headquartered in New York City, with thirty offices and representatives arou ...
Country: USA   Phone: +1-212-521-1700   Telefax: +1-212-521-1946

Zouping Mingxing Chemical Co., Ltd.

Company type: Producer
Country: P.R.China
Phone: +86-13605431940
Telefax: +86-543-2240068
Zouping Mingxing Chemical Co., Ltd lies at the west of the Huangshan Mountain in Zouping city, near to Zibo and Qingdao in the east, Japan in the west and Ji-Qing Expressway in the south, enjoying convenient transportation and favorable geographic location. Our company set up in 2002, is the pilot-scale experiment base of UNILAB Research Center of Chemical Reaction Engineering, Zhejiang University, and has established the long-term technical cooperation relationship with the ...

Biesterfeld Spezialchemie GmbH

We are seller of 2-(2-(2-Thienyl)ethyl)benzoic acid. Biesterfeld Spezialchemie is one of the leading international distributors of specialty chemicals. As solution provider we offer: a broad range of innovative raw materials, customer-specific advice and solution-oriented, technical expertise, formulation know-how, comprehensive market knowledge, close long-term cooperation with leading global suppliers, efficient logistic processes and customised logistical solutions, proximity to our customers thanks to branches in Eur ...
Company type: Import and export company
Country: Germany
Phone: +49-40 32008 326
Telefax: +49-40 32008 696

Simagchem Corporation

Company type: Bulk chemical producer
Your partner in China for chemicals business. 2,4-Dimethoxyphenylboronic acid will be also provided by us. Expertize in supplies and sources of fine, specialty, pharmaceutical chemicals and intermediates. WE offer high quality products and JIT services with instant market intelligence in China, custom synthesis in our 3 production sites, famous principals as Brenntag, Univar,S inopec, Grace, Petrobras, DKSH, Formitex, Evonik, Merck, TCI, Sanofi, Chemo with creditable reputation and business cooperation.
Country: P.R.China   Phone: +86 592 2680 277   Telefax: +86 592 2680 237

Shandong Ench Chemical Co.,Ltd

Company type: Producer
Country: P.R.China
Phone: +86-13869131854
Telefax: +86 531-8637666
Shandong Ench Chemical Co.Ltd is a professional manufacturers and supplier in the world ,the main product include chemical pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. It is a privet-owned enterprise and located in Zhangqiu industrial park, We believe that quality is the life of our company. 3,4-Dihydroxybenzophenone will be also provided by us. We manufacture our products in strict accordance with ISO9001: 2000 quality management system during the whole entire ...

Sancai Industry Co.,Ltd.

Sancai Industry is involved in supplying of fine chemicals, food and nutrition,personal care, medical intermediate etc, We can also customize chemicals for our customers.Taking advantage of innovative technology and excellent talents and through over 15 years of development,We have stabled good relation with clients in and abroad. In order to be competitive on the market. We have established the global marketing network, independent research center, testing center, and key ...
Company type: Leading producer
Country: P.R.China
Phone: +86-531-88913079
Telefax: +86-531-88913079

H&Z Industry Co.,Ltd

H&Z Industry Co.,Ltd is a large reliable and professional manufacturer of chemical materials and pharmaceutical intermediate. With about 10 years experiences in this field, now we are a capable provider of customized product, and we can provide gram level to ton level of products. What we can give to customers: thoughtful services, high-quality products, competitive price, Looking forward building long-term cooperative relationships with our business partners. We supply our chemical product Amyl salicylate.
Country: P.R.China   Phone: +86 13583185792   Telefax: +86 531 88905468

Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

Company type: Producer
Country: P.R.China
Phone: +86 571 88026825
Telefax: +86 571 88282557
Hangzhou Meite Industry Co., Ltd. is an international high-tech enterprise founded in 1998, specialized in R&D and manufacture on intermediates, medicines, agrochemical, dyestuff, flavor, fragrance, cosmetic, natural extracts series products. bis-(o-Aminophenoxy)-ethane will be also provided by us. We have an efficient R&D centre, get a strong technical support from Zhejiang University of Technology and Institute of Chemistry, Wuhan Branch, Chinese Academy of Sciences. Our factory Hangzhou Meite Chemical Co.,Ltd. is located in Fi ...

Lori Industry Co., Ltd

Lori industry Co., Ltd was established in 2002 years. It is a large-scale manufacturer integrating R&D, produce and sales. Our products mainly cover fine chemicals, organic intermediates, biological buffers, agricultural fertilizers and other chemicals . Among them, the sales proportion of organic chemicals and agricultural fertilizers is at the forefront of the domestic market. 5-Nitroisophthalic acid is also served by Lori Industry Co., Ltd. From 2013 to 2022 years, through cooperation with foreign trade companies, customers visitation, ...
Company type: Bulk chemical producer
Country: P.R.China
Phone: +86-13011713125
Telefax: +86-13011713125

Dayang Chem (Hangzhou) Co.,Ltd.

Company type: Leading producer
Hangzhou DayangChem Co. Ltd is a comprehensive entity which specializes in development, production and trade of pharmaceutical, agrochemical and dyestuff intermediates as well as some special type reagents. Methaphenilene is also served by Dayang Chem (Hangzhou) Co.,Ltd.. We have an own factory and share enterprises. We act also as agent of many chemical factories and promote their products to the international market at very competitive price. We take "Credi first, Clients supreme" as our aim. We expect to cooperate with more partners in ...
Country: P.R.China   Phone: +86-571-88938639   Telefax: +86-571-8893-8652

Nantong Xindao Biotech Ltd

Company type: Leading producer
Country: P.R.China
Phone: +86 19033786557
XINDAO is a world leading biochemical company formed by a professional team.The company specializes in the production, development and sales of animal health, crop science, nutrition and health care, skin care raw materials, fine chemicals and other products. We supply our chemical product 4-Nitrophenyl-beta-D-glucopyranoside. At present, more than 300 kinds of products can be mass produced, which are widely used in chemical industry, health, agriculture, animal husbandry, biochemical research and other high-end fields. XINDAO pays attention ...

Shandong SanYoung Industry Co., Ltd

Shandong SanYoung Industry Co., Ltd is a scientific and technological company specializing in research and development, cooperative production and sales of chemical products. We supply our chemical product 2-Phenylimidazole. The company's main products include: photoinitiator; light stabilizer; polymer retardant; ultraviolet absorbent; fine chemical products and pharmaceutical intermediates, we can also customize chemicals for our customers. Our company has a large number of customers with good reputation at home and abroad, ...
Country: P.R.China
Phone: +86 155-64526813
Telefax: +86 531-56897532

AK Scientific, Inc.

Company type: Supplier
AK Scientific provides fine chemicals and advanced intermediates to our customers worldwide. Currently, we have over 16.000 in stock, ready to ship products, at our California warehouse and this number is increasing weekly. All these products are stocked in multiple, convenient, sizes to fit your specific needs. Purchases are shipped on the same day your order is placed (before 4PM, Pacific Time) to ensure on-time delivery. We are supplier of Methyl 2-chloro-4-thiazolecarboxylate. AK Scientific products can be searched by Name (or ...
Country: USA   Phone: +1 (510) 429-8835   Telefax: +1 (510) 429-8836

BLD Pharmatech Ltd

Company type: Supplier
Country: P.R.China
Phone: +86-21-61629022
Telefax: +86-21-50201702
Founded in 2014 and headquartered in Shanghai, China, BLD Pharmatech Ltd. with more than 600,000 items, scale up manufacture and custom services is a leading manufacturer and supplier of diversified research chemicals in the industry. We are supplier of 5-Nitro-3-pyrazolecarboxylic acid. Our considerable stock of a wide range of laboratory chemicals, from heterocycles, boron acids, amino acids, metal catalysts to chiral compounds, is ready for worldwide shipping. The ISO certifications and DUNS registration are our testimonie ...

Skyrun Industrial Co., Ltd.

Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. We are supplier of 1-(4-Nitrophenyl)-3-pyrrolidino-2-pyrazolin-5-one. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...
Company type: Leading producer
Country: P.R.China
Phone: +86-576-84015261
Telefax: +86-576-84015261

Leap Chem Co., Ltd

Company type: Bulk and laboratory supplier
LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
Country: P.R.China   Phone: +852-30606658  

BIOZOL Diagnostica Vertrieb GmbH

Company type: Supplier of chemical products
Country: Germany
Phone: +49-871-966346-0
Telefax: +49-871-966346-13
Chemos®, a subsidiary of BIOZOL Diagnostica Vertrieb GmbH, is a leading supplier of ready to use solutions for the lab and chemical industry. We are producing reagents and standards for the analytical lab and supplying raw materials for the chemical and pharmaceutical industry. The base of our solutions are a portfolio of ~ 200.000 raw materials where ~ 50.000 are already available for R+D ready to order in our shop. We provide 1,1-Difluoroethylbenzene as well. We are supplying and producing lab quantities from tiny qua ...

BuGuCh & Partners

We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...
Company type: Producer
Country: Germany

Safety Information

Hazard Classes:
Risk Codes:
36/37/38 (R)
Safety Codes:
24/25-36-26 (S)
WGK Germany:
2
RTECS:
NT2007000

What other providers are available for CAS 121-91-5?

In addition to the providers presented here for Isophthalic acid with the CAS number 121-91-5, there are other 20 providers with slightly different product names available for this CAS number.

Chemical-Suppliers PIA
Janex S.A.
+1 additional providers that we know from the past
BuGuCh & Partners +3 additional providers that we know from the past
+1 additional providers that we know from the past
Sancai Industry Co.,Ltd. | Xiamen Equation Chemical Co.,Ltd | Skyrun Industrial Co., Ltd. +7 additional providers that we know from the past
+1 additional providers that we know from the past




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