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BGC » Chemicals A-Z » 3-Aminophthal hydrazide
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3-Aminophthal hydrazide

BGC Id:912235880276
CAS No:521-31-3
Synonyms:
Molecular Formula:C8H7N3O2
Molecular Weight:177.16
EINECS:208-309-4
Structural Formula

Verified providers in 2026

The following 17 notable providers have been checked and can be recommended.
Chemical-Suppliers
Senzhuo Industry
Purity : 99,0%
Chemical-Suppliers
Sancai Industry
Appearance pale white to light yellow powder Assay 98%min Loss on drying 1 max Storage 2~8 °C keep in dark place
Chemical-Suppliers
Zehao Industry
Appearance Off-white to light yellow powder Assay(HPLC)% ≥ 98.0 Loss on drying % ≤ 8.0

Chemical-Suppliers
Molekula
Molecular Weight : 177.16 Formula : C8H7N3O2 HS Code : 2933998090 Categories : Stains & Indicators
Chemical-Suppliers
Leap Chem
Molecular Formula: C8H7N3O2 Molecular Weight: 177.16 Hazard Symbols: Xi,Xn WGKGermany: 3 HS Code: 29339990

The last intensive check and update was carried out on 2026/04/28.
CAS:
521-31-3
EINECS:
208-309-4
Molecular Formula:
C8H7N3O2
MDL:
MFCD00006890

Properties

Molecular Weight:
177.16 g·mol−1
Density:
~1.4 g/cm3 (Predicted)
Melting point:
325-330 °C
Boiling point:
467.05 °C (Predicted)

Suppliers

Suzhou Advshine Biopharm Co Ltd

Company type: Producer
We are one research based New & Hi-Tech custom synthesis manufacturer headquartered in Suzhou, China, leaded by three PhD founders in line of Biological Stains, Dyes and Indicators, Diagnostic Reagents, Biochemicals, Pharmaceuticals, Specialty Chemicals. Since its foundation in 1998, we have been offering a wide range of custom manufacturing services from pilot scale process development to commercial scale manufacturing on a partnership basis. SUZHOU ADVSHINE BIOPHARM CO LTD ...
Country: P.R.China   Phone: +86 512 68246939   Telefax: +86 512 68258994

Senzhuo Industry Co.,Ltd

Country: P.R.China
Phone: +86-15165036020
Telefax: +86-88902568
Senzhuo Industry Co., Ltd. (“Senzhuo”) established in 2009, is a key chemical manufacturer and supplier in China. We are engaged in supply high quality pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. We also customize high value-added chemicals and intermediates for the customer. Senzhuo industy Co.,Ltd factory located in both Zhangqiu industrial zone and Jiangshu industrial zone. Sales office in Jinan city ...

OPQ Chemical Co., Ltd

OPQ Chemical is a high tech enterprise,located in China Spring city(Jinan).Mainly engages in the development and production of phenolic and quinones,additive agents, dying stuffs, and pesticide intermediates,and also has been involved in other fine chemicals,cosmetic raw materials etc.And actively practices the business philosophy of "MY heart, let you feel more assured". We are supplier of Dodecyltrimethylammonium chloride. OPQ has international advanced production technology and equipment, the company's marketing network thro ...
Company type: Producer
Country: P.R.China
Phone: +86-17615852982

Xi'an Taicheng Chem Co., Ltd

Company type: Producer
Xi'an Taicheng Chemco, Ltd is a international company specialized in R&D, Production and Sales in Pharmacetical raw material, nutritional, cosmetic and biochemical products. Xi'an Taicheng Chem Co., Ltd is a seller of Roxithromycin. Founded in 2006, with rapidly development, now we have one herb extracts plant, one chemical plant (synthetci products) and a lab.
Country: P.R.China   Phone: +86-29-85439295   Telefax: +86-29-85439295

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. We are seller of Magnesium L-threonate. 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. Additionally Bisphenyl A bis (diphenyl phosphate) BDP is supplied by us. 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. Phenethyl chloride will be also provided by us.
Country: P.R.China   Phone: +86 13583185792   Telefax: +86 531 88905468

Shandong Minglang Chemical Co., Ltd

Company type: Producer
Country: P.R.China
Phone: +86-13220566916
Telefax: +86 531 58990167
Minglang Chemical is owned by Minglang Group,is a large manufacturer of fine chemicals and cosmetic materials that integrates R&D,production and sales together.It is located in the east of the Nanwang Economic Development District in Linzi,and the west of it is Qilu Petroleum Chemical Group,the east of it is Zijiang Road and the transportation is convenient.The enterprise covers an area of 9,000 square meters and the building area can be 3,200 square meters. Diphenylacetonitrile is also served by Shandong Minglang Chemical Co., Ltd. In recent years,t ...

Zehao Industry Co., Ltd.

The Shepherd Chemical Company was founded in Norwood, Ohio, in 1916. We are a fourth-generation company and a custom manufacturer of Inorganic Metal Salts and Organic Metal Compounds to the global marketplace. Our long-standing success is built upon technical expertise, supplier reliability, and customer relationships. Our goal is to supply the marketplace with high quality metal compounds as standard or customized products. 2,3,6-Trimethylquinoxaline is also served by Zehao Industry Co., Ltd.. Our capabilities are comprised of our manufacturi ...
Country: P.R.China
Phone: +86-531-88909322
Telefax: +86-531-88909322

Lori Industry Co., Ltd

Company type: Bulk chemical producer
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 . Lori Industry Co., Ltd is a seller of Diammonium 2,2'-dithiodiacetate. Among them, the sales proportion of organic chemicals and agricultural fertilizers is at the forefront of the domestic market. From 2013 to 2022 years, through cooperation with foreign trade companies, customers visitation, ...
Country: P.R.China   Phone: +86-13011713125   Telefax: +86-13011713125

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. Tris acetate will be also provided by us. 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 ...

Capot Chemical Co., Ltd.

Welcome to Capotchem • Established in 1996 ,Capot Chemical Co.,Ltd is a fine organics manufacturing facility which located in Hangzhou,P.R.China. We sell 5-Bromo-2-(difluoromethoxy)benzoic acid methyl ester as well. We produce a wide range of organics, especially fluorine, boronic acids, amino acids, unnatural amino acids, peptide, cross linkers, organocatalysts, chiral building blocks, heterocyclic compounds and other active pharmaceutical ingredients compounds. We are certified to the ISO 9001:2000 Standards, have a safety management syste ...
Company type: Leading producer
Country: P.R.China
Phone: +86-571-85586718
Telefax: +86-571-85864795

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. 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. Shandong SanYoung Industry Co., Ltd also offers 3-Isochromanone. 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

Molekula GmbH

Company type: Trading company
Country: Germany
Phone: +49 (0) 89 360 900 900
Telefax: +49 (0) 89 360 900 901
Molekula supplies speciality chemicals and biochemicals to the fine chemical, research and diagnostic community. Our core competence is in the area of heterocycles for combinatorial chemistry, small building blocks for discovery and large scale synthesis for pilot teams and production. In the field of biochemicals, Molekula is a major supplier of key reabents used in the area of diagnostics, microbiology and biotechnology.

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 have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Skyrun Industrial Co., Ltd. is a seller of (-)-bis-((S)-1-(ethoxycarbonyl)ethyl) fumarate. 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. We supply our chemical product 4-Methyl-DL-tryptophan. 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 are supplying and producing lab quantities from tiny qua ...

What other providers are available for CAS 521-31-3?

In addition to the providers presented here for 3-Aminophthal hydrazide with the CAS number 521-31-3, there are other 67 providers with slightly different product names available for this CAS number.

VUOS - Vyzkumny ustav organickych syntez a.s. | Alchimica s.r.o. | Wuhan PharmChem Co., LTD. | Xi'an Taicheng Chem Co., Ltd | Shandong Lanhai Industry Co.,Ltd. | Hangzhou Zhongqi Chem Co., Ltd | Nantong Xindao Biotech Ltd | BOC Sciences | Hangzhou Lingrui Chemical Co., Ltd. | Xingrui Industry Co., Limited | AK Scientific, Inc. +28 additional providers that we know from the past
VUOS - Vyzkumny ustav organickych syntez a.s. | Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd) +5 additional providers that we know from the past
Hangzhou Zhongqi Chem Co., Ltd | Hangzhou Trylead Chemical Technology Co., Ltd. | BLD Pharmatech Ltd +13 additional providers that we know from the past
+3 additional providers that we know from the past




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