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Methyl 3-oxo-4-androstene-17beta-carboxylate for Finasteride CAS NO.2681-55-2
- Min.Order: 100 Gram
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- Product Details
Keywords
- F4
- F9
- Finasteride
Quick Details
- ProName: Methyl 3-oxo-4-androstene-17beta-carbo...
- CasNo: 2681-55-2
- Molecular Formula: C21H30O3
- Appearance: detailed see specifications
- Application: Methyl-3-Oxo-4-androstene-17β-carboxyl...
- DeliveryTime: Check with us according to inquiry qua...
- PackAge: Aluminium Foil Bag
- Port: Hangzhou or Shanghai etc
- ProductionCapacity: 800 Kilogram/Month
- Purity: 99%min
- Storage: Stored in a cool and dry well-closed c...
- Transportation: by air or sea
- LimitNum: 100 Gram
- Grade: Pharma Grade
Superiority
Methyl-3-Oxo-4-androstene-17β-carboxylate (F4) CAS:2681-55-2
Finasteride intermediate
Related: 3-Oxo-4-androstene-17β-carboxylic acid
| Name | Methyl 3-oxo-4-androstene-17beta-carboxylate | |
| Molecular Structure | ||
| Molecular Formula | C21H30O3 | |
| Molecular Weight | 330.46 | |
| CAS Registry Number | 2681-55-2 | |
HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture.
With about ten years of business experiences on the marketing & distribution, thinkchem specializes in exporting pharmaceuticals, veterinary drugs, feed additives, intermediates, fine chemicals, plants extracts, pesticides, food & nutrition additives.
Thinkchem is good at offering excellent outsourcing services to overseas customers as well as laboratory support.
Custom manufacture
Thinkchem is good at offering contract manufacture and custom synthesis under confidential agreement timely and effectively, and providing sales service from grams ,kilograms to multi-tons particularly for pharmaceuticals and their intermediates discovery and development. Thinkchem is equipped with modern lab apparatus including HPLC, GC. TLC AND NMR, motivated by a team of highly qualified personnel using these equipments.
Staff
Thinkchem is composed of chemical technicians, analytical chemists, organic chemists, and chemical engineers educated in leading universities in china. Our staff is supported by a group of consultants from academia with expertise in chemical synthesis and analytical chemistry.
Details
Methyl-3-Oxo-4-androstene-17β-carboxylate (F4) CAS:2681-55-2
|
Items |
Standard |
Results |
|
Description |
White or off-white powder |
off-white powder |
|
Identification(HPLC) |
complies with the standard |
complies |
|
Loss on drying |
not more than 1.0% |
0.04% |
|
Water |
not more than 1.0% |
0.04% |
|
Specific rotation(25℃ on anhydrous basis, DMSO) |
+50° ~ +65° |
+64.6° |
|
Related substances(HPLC) |
||
|
--RP-35 isomer |
not more than 1.0% |
0.31% |
|
--RP-35 ester (M3) |
not more than 0.10% |
n.d |
|
--Other unknown impurities |
not more than 0.5% |
0.14% |
|
--Total impurities |
not more than 1.5% |
0.42% |
|
--purity |
not less than 98.5% |
99.6% |
|
Assay(HPLC,basis on drying) |
97.0~101.0% |
100.5% |
|
Pd |
not more than 10ppm |
3ppm |
|
Conclusion: The test product complies with the requirements of enterprise Standard |
||
| Name | 4-Aza-5a-androstan-1-ene-3-one-17b-carboxylic acid | |
| Synonyms | (5alpha,17beta)-3-Oxo-4-azaandrost-1-ene-17-carboxylic acid |
| Density | 1.166 | |
| Melting point | 295-297 ºC |
1. Well-trained professional sales team dedicated to source, audit and export.
2. Well-trained R & D team equipped with new knowledge, new ideas and new insights to support product development and innovation.
3. Well-established partnership with major pharmaceutical and chemical companies in china.
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