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Hypophosphorous acid

BGC Id:870057975335
CAS No:6303-21-5
Synonyms:phosphinic acid 50% ; phosphinic acid ; dihydroxyphosphine ; hypophosphorous acid 30% to 32% (as per nf specs) up to 80% ; diphosphoric(iv) acid ; hypophosphorous acid (hpa 50%) ; hypophosphorous acid ; phosphonous acid ; hydroxyphosphine oxide ; hypophosphorous acid (hpa) ; hypophosporous acid ; hypophosphoric acid ; phosphine oxide, hydroxy- ; hypophoaphoeous acid ; hypophosphorous ; hypophosphorous acid 50% ; hypophosphorus acid
Molecular Formula:H3O2P
Molecular Weight:66.00
EINECS:228-601-5
Structural Formula

Verified providers in 2025

The following 8 notable providers have been checked and can be recommended.
The last intensive check and update was carried out on 2025/07/16.

Identify

Synonyms:
phosphinic acid 50% ; phosphinic acid ; dihydroxyphosphine ; hypophosphorous acid 30% to 32% (as per nf specs) up to 80% ; diphosphoric(iv) acid ; hypophosphorous acid (hpa 50%) ; hypophosphorous acid ; phosphonous acid ; hydroxyphosphine oxide ; hypophosphorous acid (hpa) ; hypophosporous acid ; hypophosphoric acid ; phosphine oxide, hydroxy- ; hypophoaphoeous acid ; hypophosphorous ; hypophosphorous acid 50% ; hypophosphorus acid
CAS:
6303-21-5
EINECS:
228-601-5
Molecular Formula:
H3O2P
MDL:
MFCD02183592

Properties

Molecular Weight:
66.00 g·mol−1
Density:
1.206 g/mL at 20 °C(lit.)
Melting point:
-25 °C
Boiling point:
108 °C (759.8513 mmHg)
Solubility:
soluble in water
Physical Description:
colourless liquid

Suppliers

Richman Chemical Inc.,

For over 17 years, Richman Chemical, Inc. (RCI) has been providing project management, custom manufacturing and sourcing services to the chemical and life sciences industries. RCI has an extensive chemical and pharmaceutical raw material and intermediate product range. Because of its widespread custom/contract services activities, RCI can offer customers access to its extensive network of worldwide suppliers.
Country: USA   Phone: +1-215-628-2946   Telefax: +1-215-628-4262

INNOCHEM

Company type: Bulk chemical supplier
Country: Belgium
Phone: +32-14-301134
Telefax: +32-14-301109
INNOCHEM is an ISO 9001 certified company specialized in the worldwide marketing of chemical specialties for a wide range of industries. INNOCHEM is a seller of Itaconic acid. From our offices in Belgium, France, Germany, the Netherlands and USA and through our network of contacts in the Far East we are serving our customers with high quality sourcing at competitive prices.

Hangzhou Keying Chem Co., Ltd.

Hangzhou Keying Chem Co., Ltd. Is a comprehensive enterprise, dedicated to the development, production and marketing of chemicals. As a technology innovative and service professional enterprise, Our company mainly engages in global pharmaceutical, chemical and biological service. We are seller of 5-Bromo-6-methyl-3-nitro-2-pyridinamine. After years of development, our company has accumulated abundant products resources in local China and international market which increasingly satisfy development requirements of customers. The p ...
Country: P.R.China
Phone: +86-571-85378921
Telefax: +86-571-85378913

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

Company type: Producer
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. 3-Methyl-4-nitropyridine N-oxide is also served by Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd). 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 ...
Country: P.R.China   Phone: +86 571 88026825   Telefax: +86 571 88282557

Xiamen Equation Chemical Co.,Ltd

Company type: Bulk chemical producer
Country: P.R.China
Phone: +86 592 6515854
Telefax: +86 592 6515854
Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are committed to provide experienced high quality product and JIT performance to benefit our customers. We supply our chemical product Hydroquinone.

Leap Chem Co., Ltd

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 ...
Company type: Bulk and laboratory supplier
Country: P.R.China
Phone: +852-30606658

BIOZOL Diagnostica Vertrieb GmbH

Company type: Supplier of chemical products
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 OphiopogoninD as well. We are supplying and producing lab quantities from tiny qua ...
Country: Germany   Phone: +49-871-966346-0   Telefax: +49-871-966346-13

BuGuCh & Partners

Company type: Producer
Country: Germany
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 ...

Safety Information

Hazard Classes:
8
Risk Codes:
34 (R)
Safety Codes:
26-36/37/39-45 (S)
WGK Germany:
1
RID / ADR:
UN 3264 8 / PG 3
RTECS:
SZ6400000

What other providers are available for CAS 6303-21-5?

In addition to the providers presented here for Hypophosphorous acid with the CAS number 6303-21-5, there are other 22 providers with slightly different product names available for this CAS number.

Skyrun Industrial Co., Ltd. | BuGuCh & Partners +9 additional providers that we know from the past
+2 additional providers that we know from the past
+6 additional providers that we know from the past
+1 additional providers that we know from the past
+2 additional providers that we know from the past




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