4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid(91-34-9)
- Name: 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
- Synonyms:2,2'-Stilbenedisulfonicacid, 4,4'-bis(p-hydroxyphenylazo)- (6CI); Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[(4-hydroxyphenyl)azo]- (9CI); C.I. Direct Yellow 4(7CI,8CI)
- Molecular Formula:C26H20 N4 O8 S2
- Molecular Weight:580.599
- CAS Registry Number:91-34-9
- EINECS:
- Melting Point:
- Water Solubility:
CAS No.91-34-9 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
Assay:98%Min Appearance:detailed in specifications Package:according to the clients requirement Storage:Store in dry, dark and ventilated place. Transportation:by air or by ocean shipping Application:An important raw material and intermediate used in Organic Synthesis, Pharmaceuticals
Min. Order:1Kilogram
Supplier:Dayang Chem (Hangzhou) Co.,Ltd. [
China (Mainland)] 
Assessed
SupplierTel:+86-571-88938639
Address:9/F, Unit 2 Changdi Torch Building, 259# WenSan Road, Xihu District, Hangzhou City 310012, P.R.China
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CAS No.91-34-9 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonicacid
Assay:99% Appearance:powder or liquid Package:according to customer requirements Storage:store in dry dark and ventilated place Transportation:By Sea/Air/Courier Application:It is an important raw material.
Min. Order:10Gram
Supplier:Zibo Hangyu Biotechnology Development Co., Ltd [
China (Mainland)] 
Assessed
SupplierTel:86-15965530500
Address:Room1701, Tianxing Building,Licheng district, jinan, Shandong, China
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CAS No.91-34-9 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
Assay:99.0% Appearance:liquid Package:Grams, Kilograms Storage:Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials. Transportation:According to customer request Application:For R&D and commerical use
Min. Order:100Gram
Supplier:Chemlyte Solutions [
China (Mainland)] 
Assessed
SupplierTel:+86-189 8945 5137
Address:Jian Qiao Community, 789 Shenhua Road, Xihu District, Hangzhou, China, 310000
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CAS No.91-34-9 Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[2-(4-hydroxyphenyl)diazenyl]-
Assay:99% Transportation:By sea Application:Pharmaceutical industry
Min. Order:0
Supplier:Antimex Chemical Limied [
China (Mainland)] Assessed
SupplierTel:0086-21-50563169
Address:Room1027,No.Jinyu Road,Pudong
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CAS No.91-34-9 Direct yellow 4 (C.I. 24890)
Assay:97% Appearance:Powder Package:according to the clients requirement Storage:Room temperature with sealed well Transportation:by sea or by air Application:Use as primary and secondary intermediate
Min. Order:0
Supplier:BOC Sciences [
United States] 
Premium
SupplierTel:1-631-485-4226
Address:Ramsey Road
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CAS No.91-34-9 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
Assay:99% Application:It is an important raw material.
Min. Order:0
Supplier:Shandong Mopai Biotechnology Co., LTD [
China (Mainland)] 
Premium
SupplierTel:+86-15965530500
Address:shandong
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