1. Introduction of CAS 107868-30-4 Exemestane Powder：

 Exemestane Powder structure:

Introduction:

Exemestane (trade name Aromasin) is a drug used to treat breast cancer. It is a member of the class of drugs known as aromatase inhibitors. Some breast cancers require estrogen to grow. Those cancers have estrogen receptors (ERs), and are called ER-positive. They may also be called estrogen-responsive,hormonally-responsive, hormone-receptor-positive. Aromatase is an enzyme that synthesizes estrogen. Aromatase inhibitors block the synthesis of estrogen. This lowers the estrogen level, and slows the growth of cancers.

2. Application of CAS 107868-30-4 Exemestane Powder：:

1. Exemestane is an oral steroidal aromatase inhibitor that is used in ER-positive breast cancer in addition to surgery and/or radiation in post-menopausal women.

2. Exemestane is an irreversible, steroidal aromatase inactivator.
3. It acts as a false substrate for the aromatase enzyme, and is processed to an intermediate that binds irreversibly to the active site of the enzyme causing its inactivation, an effect also known as "suicide inhibition."

4. By being structurally similar to enzyme targets, Exemestane permanently binds to the enzymes, preventing them from converting androgen into estrogen.

3. The Packaging of Exemestane

The usual one package of Exemestane is 25kg/drum. But we could also subpackage it according to our customers' requirements.Such as 1kg/bag, 5kg/bag, 10kg/bag,etc.

Generally, the powder of Exemestane will be packed in sealed plastic bags, and then be locked into the carton barrels or sealed in woven bags or craft paper bags. But we could also pack it with aluminium foil bags to provide more protection to the goods as our customers' required.

4. FAQ

Q1: How to confirm the Product Quality before placing orders?

A. Offering you our products specification standard (tested by HPLC, UV, GC and TLC etc.)

B. Free samples could be sent to check the product quality before ordering.

C. If you have special requirement on the product, we may customize it according to your requirement until to your approval.

Q2: Samples & MOQ

A. We could provide some free samples, but the shipping cost should be on the customers’ account. You can either pay the shipping cost or arrange a courier to collect the samples.

B. For the high value product, our MOQ starts from 1g and generally starts from 10g.

For other low value product, our MOQ starts from 1kg.

Q3: How about delivery?

A: Delivery lead time: within 3 days when get the payment.

B. Samples: please expect 5-7 days by FedEx,EMS, UPS,TNT.

Formal Orders: please allow 5-8 days by Air, 20-35 days by Sea.