Analytical Reagents - suppliers, manufacturers, exporters


Schisanwilsonin I

?Product Number? PS0906-0002 ?Product Name? Schisanwilsonin I ?CAS Number? 1181216-84-1 ?Chemical Name? 2-Butenoic acid, 2-methyl-, (5S,6R,7S,13aS)-5,6,7,8-tetrahydro-6-hydroxy-1,2,3,13-tetramethoxy-6,7-dimethylbenzo[3,4]cycloocta[1,2-f][1,3]benzodioxol-5-yl ester, (2E)- ?Chemical Formula? C28H34O9 ?Molecular Weight? 514.56 ?Chemotaxonomic Group? Lignanoids ?Grade? ?90.0%?HPLC? ?Appearance? White Powder ?Size? 2mg ?Storage? Keep in Dark Place

Properties Suppliers
Sodium 1-Heptanesulfonate monohydrate A.C.S.

Product: Sodium 1-Heptanesulfonate monohydrate.      CAS No. 207300-90-1


White powder



Min 98%


2% Methanol Solution

Clear and Colourless


10% Aqueus Solution

Clear and Colourless


UV Transmission



At 200 nm

Min 70% transmission


At 220 nm

Min 90% transmission


At 250 nm

Min 98% transmission


At 280 nm

Min 99% transmission


Loss on drying (at 120 deg C)

Max 2%


Molecular Weight: 220.26                                                             Batch No. KE-HPM/-001-14-15


Properties Suppliers
Strontium bromide

Available in bulk as well as small packing

Properties Suppliers
Vanadium Dioxide Purified 98

Vanadium dioxide is a special oxide that could filter infrared ray. So it is a good temperature-controling materials. It is processed into film or add in glass normally. It is raw material for smart glass

Properties Suppliers
Xanthohumol LAB GRADE 98%

Product: Xanthohumol

CAS no.: 569-83-5

purity: 98%(HPLC)

Molecular formula:C21H22O5

Formula weight: 354.40649

Tauto biotech as a Leader Supplier of Botanical Reference Materials in China, have more than 17 years of history,$9 million in assets,and agents in around 13 countries. 

We are devoted to the research, production and sales of valid monomer of natural plants with high purity and raw materials/intermediate of Herbal medicines.With the use of HSCCC, we have successfully extracted over 3000 monomers with the purification over 98%. Also we have the ability of manufacturing new products among the herbal extracts at the client's will.  

The quality is guaranteed as we have certification of ISO 9001:2008 International Quality System. And each product has passed very strict tests (NMR\MS\HPLC). Before send out ,we also retest the product by HPLC.

Properties Suppliers
acetazolamide Impurity G USP 95%

Olympus is a professional manufacturer and supplier of acetazolamide impurity in all over the world. We also offers other acetazolamide impurities like Acetazolamide impurity A, Acetazolamide impurity B, Acetazolamide impurity C, Acetazolamide impurity D, Acetazolamide impurity E, Acetazolamide impurity G.                                                                                                                                                                                                                  

Team Olympus synthesized all impurities, related compound, isomer degradation products of Acetazolamide Impurity purely through hard core organic synthesis and are well characterized by HNMR, 13CNMR, MASS, IR, TGA, elemental analysis, purity test by HPLC and RT,  RRT using pharmacopeia method. 

Properties Suppliers
ammonium citrate tribasic purified 99.5%

Ammonium citrate dibasic is also named diammonium citrate or ammonium hydrogen citrate.It is a dibasic salt of citric acid and produced by complete neutralisation of citric acid with high purity ammonium hydroxide.It occurs as white colorless crystals. It is freely soluble in water with non-toxic.The PH value of ammonium citrate dibasic is often during 4.5 to 5.5 . And it easily deliquesces so that it should be kept in dry and airtight container .



   Ammonium citrate dibasic is mainly used as analysis reagent,buffer agent and textile           

   plasticizer material.It can be widely used in electronic capacitor industry also.Especially it

   can obviously improve performances of starch size film and adhesion of pure cotton yarn 

as a good textile auxiliary .

Properties Suppliers
bismuth subnitrate CP 99.9%

bismuth subnitrate 

white heavy powder

dissolve in HCL, nitric acid and dilute sulfuric acid, and insoluble in water and acohol. 

CAS# 10361-46-3

EINECS No.:233-792-3

Molecular Formula:BiNO4

Molecular Weight:286.98

Purity: 99%, 99.5%, 99.9%

Properties Suppliers
cyanogen bromide A.C.S. Above 90%



CAS NO.                     :           506-68-3


Molecular Formula   :           CNBr


Molecular Weight       :           105.92


Appearance                :           White Crystalline


BATCH NO.               :           CB 1712


Mfg Dt                        :           Dec      2017

Retest                          :           Nov     2022



TESTS                                     LIMITS                                   RESULTS


Melting Point                          52°C                                        52°C


Assay                                      > 98%                                     98.20%




Remarks:        The above sample conforms to standard specifications

Properties Suppliers