English
ISO factory supply Raw steroid powder 99% Exemestane with reasonable price CAS 107868-30-4
1-1000 Gram
$4.00
≥ 1001 Gram
$3.80
- Item No. 99%MOQ 1 Gram
Choice
Quantity:
If you have your own design, please contact us, there will have a professional customer service to communicate with you.
Don't have your files right now?No worries, Check out our art tips for more information.
If over 500pcs, mass production will start until pre-production sample has been approved.
Est. 7 days production
High Quality API 99% CAS 107868-30-4 Exemestane
1 CAS: 107868-30-4
2 Trade names: Aromasin
3 Formula: C20H24O2
4 Mol. mass: 296.403 g/mol
5 Specification: Enterprise standard
6 Appearance: white crystalline powder
7 exemestane Assay: 99%
| Test Items | Specification | Results |
| Description | White Crystalline Powder | White Crystalline Powder |
| Identification | Positive | Positive |
| Assay(by HPLC) | 98.0~102.0% | 99.24% |
| Absorbance(E1cm) | 465~495 | 482.5 |
| Melting Point | 191~195°c | 193.5~195.0°c |
| Loss On Drying | 0.5%MAX | 0.19% |
| Specific Rotation | +288°~+298° | +290.2° |
| Residue On Ignition | 0.1%MAX | 0.03% |
| Related Substances | Total:1.5%MAX | <1.3% |
| Single:0.5%MAX | <0.4% | |
| Residue Solvents | 0.2%MAX | 0.10% |
| Heavy Metals | 20PPm max | <10PPm |
| Conclusion | The specification conform with enterprise standard. | |
Many breast cancers are stimulated to grow by the female sex hormones oestrogen and progesterone. These breast cancers are called hormone sensitive or hormone receptor positive and can be treated with drugs that block the effects of these hormones.
In women who have had their menopause, oestrogen is mainly produced by changing androgens (sex hormones produced by the adrenal glands) into oestrogens. This process is called aromatisation and happens mainly in the fatty tissues, muscle and the skin. It needs a particular enzyme called aromatase.
Exemestane blocks the process of aromatisation. So it lowers the amount of oestrogen in the body. In early breast cancer, taking exemestane can help to stop breast cancer coming back. In advanced breast cancer the cancer cells may grow more slowly or stop growing completely.
The aim of Qingdao Sigma Chemical Co., Ltd is a quality policy that "Elements in the system
Answer: Yes, we are factory founded on 2002.
Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders?
A: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.
Q7:How do you treat quality complaint?
A: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.
Send your message to us
No need register, just fill in contact info below, we will reply you within 24 hours!
