| CAS No.: | 52-01-7 |
|---|---|
| Formula: | C24h32o4s |
| Appearance: | Powder |
| Usage: | Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals |
| Purity Degree: | 99% |
| Product Name: | Spironolactone |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier | Items | Requirements | Results |
| Appearance(Ph.Eur.) | a white or yellowish-white powder | White powder |
| Solubility(Ph.Eur.)(annual) | practically insoluble in water,soluble in ethanol(96 per cent) | Complies |
| Identification | ||
| A.1R -spectrum(Ph.Eur.) | meets the requirement | Complies |
| A.IR -spectnnn(USP) | meets the requirement | Complies |
| B.TLC(Ph.Eur.) | meets the requirement | Complies |
| B. UV Absorption(USP) | meets the requirement | Complies |
| C. Colour Reaction(Ph.Eur.) | meets the requirement | Complies |
| C.Precipitate react ion(USP) Specific optical rotation |
meets the requirement | Complies |
| Specific optical rotation | ||
| (Ph.Eur.) | between -41° and -46° | -43.6° |
| (USP.) | between -41 ° and -45° | -43.3° |
| Loss on drying | ||
| (Ph.Eur.) | not more than 0.5% | 0.05% |
| (USP) | not more than 0.5% | 0.05% |
| Sulphated ash(Ph.Eur) | not more than 0.1 % | 0.01% |
| Related substances(Ph.Eur.) | ||
| Impurity A | not more than 0.2% | ND |
| Impurity F | not more than 0.3% | 0.05% |
| Impurity C | not more than 0.2% | ND |
| Impurity D | not more than 0.15% | ND |
| Impurity E | not more than 0.3% | ND |
| Impurity 1 | not more than 0.5% | ND |
| Any unspecified impurity | not more than 0.10% | Complies |
| Total | not more than 0.7% | 0.11% |
| Ordinary inipurities(USP) | not more than 2.0% | Complies |
| Free tliiol compounds(Ph.Eur.) | not more than 0.05ml | Complies |
| Free mercapto compounds(LJSP) | not more than 0.10ml | Complies |
| Chromium(Ph.Eur.) |
not more than 50ppin | Complies |
| Assay | ||
| HPLC (Ph.Eur.) | between 97.5% and 102.0 % | 100.6% |
| HPLC(USP) | between 97.0 % and 103.0 % | 99.7% |
| Residual solvent(ln-housc) | ||
| Methanol | not more than 3000ppin | 49ppni |
| Tetrahydrofuran | not more than 720ppm | Less than LOD(0.4ppm) |
| DMF | not more than 880ppni | Less than LOD(43ppm) |
| Particle size(ln-house) | 95% not more than 20 microns | Complies |
| Conclusion | The product conforms to Ph.Eur.9/USP40 | |
Packaging: According to customer requirements
| Weight | Package |
| <25KG | By foil-alum bag/pap/bottle |
| ≥25kg | Package: 25kg/drum/bag or as your request |
Hangzhou Dingyan Chem Co., LTD. is located in the beautiful tourist city of hangzhou, is a comprehensive chemical enterprice which doing import and export business by its own company, and quality control by ISO9001:2008. Product range including HARD FAT(Fatty bases for Suppositories), API, pharma intermediates, metal catalyst, biochemical reagent and general reagents, plant extracts, plant growth regulator, food additive, etc.
With the developing world market, we adhere to the principle of "quality, service, integrity and development" , following "low carbon, environmental protection", forge ahead, and constantly in pursuit of higher level of product quality and service.
We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relatiions.
Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals.
We could give you:
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
1.Best quality in your requirement
2.Competitive price in China market
3.mature Technical support
4.Professional logistic support
All we want is win-win business. Send yr. inquiries, you will get it!
Q1 Can i get some samples
A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How to start orders or make payments
A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal or Escrow(Alibaba).
Q3 How to confirm the Product Quality before placing orders
A3 You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4 What's your MOQ
A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5 How about delivery leadtime
A5 Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6 Is there a discount
A6 Different quantity has different discount.
Q7 How do you treat quality complaint
A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q8 How to contact us
A9 You can chat with us by Trademanager,MSN&Skype Online.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly or send Email to us., you will get our reply.
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