4,4-Diamino-2,2-stilbenedisulfonic acid
2 Inquiries
81-11-8
99%
Bottle,barrel,cargo,container,etc.
2026-07-17
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
4,4-Diamino-2,2-stilbenedisulfonic acid
81-11-8
C14H14N2O6S2
Quick DetailsProName:4,4-Diamino-2,2-stilbenedisulfonic acid
CasNo:81-11-8
Molecular Formula:C14H14N2O6S2
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsBasic Info-
Product Name:
Diaminostilbenedisulfonic acid
Other Name:Benzenesulfonic acid,2,2′-(1,2-ethenediyl)bis[5-amino-;2,2′-Stilbenedisulfonic acid,4,4′-diamino-;2,2′-(1,2-Ethenediyl)bis[5-aminobenzenesulfonic acid];Amsonic acid;DASD;p,p′-Diaminodiphenylethylene-o,o′-disulfonic acid;Flavonic acid;4,4′-Diamino-2,2′-stilbenedisulfonic acid;p,p′-Diaminostilbene-o,o′-disulfonic acid;2,2′-Disulfo-4,4′-stilbenediamine;Diaminostilbenedisulfonic acid;DAS;NSC 163;DSD acid;65941-98-2;1586010-34-5
CAS No.:81-11-8
Molecular Formula:C14H14N2O6S2
InChIKeys:InChIKey=REJHVSOVQBJEBF-UHFFFAOYSA-N
Molecular Weight:370.4
Exact Mass:370.40
BRN:629516
EC Number:201-325-2
HScode:29215900
Categories:
Characteristics-
PSA:
178
XLogP3:0.3
Appearance:Cream to yellow-brown Crystalline Powder
Density:1.4732 (rough estimate)
Melting Point:>300 °C
Refractive Index:1.726
Water Solubility:H2O: <0.1 g/100 mL at 23 ºC
Storage Conditions:-20°C Freezer
Hazard IdentificationClassification of the substance or mixture
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) H412 Harmful to aquatic life with long lasting effects
Precautionary statement(s) Prevention P273 Avoid release to the environment.
Response none
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
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Certifications:
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 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 pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
Pakistan
2,2'-Stilbenedisulfonicacid, 4,4'-diamino- (6CI,7CI,8CI)
2000 KG Nov 11, 2025
Pakistan
DASDA
1 MT Nov 18, 2025 Post an enquiry for this product
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