Manufacturer Supply High Quality CAS 797-63-7 Levonorgestrel

• CAS No.: 797-63-7
• Formula: C21h28o2
• EINECS: 212-349-8
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-02ALI
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	Levonorgestrel
CAS	797-63-7
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

Levonorgestrel
Product Name Levonorgestrel

CAS 797-63-7

MF C21H28O2

MW 312.45

EINECS 212-349-8

MOL File797-63-7.mol

Chemical Properties

Melting point 206°C
alpha  D20 -32.4° (c = 0.496 in CHCl3)
Boiling point 392.36°C (rough estimate)
Density  1.0697 (rough estimate)
refractive index  1.4900 (estimate)
storage temp.  Sealed in dry,2-8°C
solubility  Practically insoluble in water, sparingly soluble in methylene chloridee, slightly soluble in ethanol (96 per cent).
form  neat
pka 13.09±0.40(Predicted)
color  Crystals from MeOH/CHCl3
Water Solubility  10mg/L(temperature not stated)
Merck  13,6736
CAS DataBase Reference 797-63-7(CAS DataBase Reference)



Usage And Synthesis
Overview

Levonorgestrel[LNG] is a synthetic progestational hormone with actions similar to those of progesterone and about twice as potent as its racemic or[+-]-isomer[norgestrel][1]. It is a kind of emergency contraception, referring as a drug or device used to prevent pregnancy after unprotected sexual intercourse[including sexual assaullt] or after a recognized contraceptive failure[1]. It is used for contraception, control of menstrual disorders, and treatment of endometriosis. Levonorgestrel is marketed mostly as a combination oral contraceptive under several brand names such as Alesse, Triphasil, and Min-Ovral. It is also marketed under the brand of Plan B.
Levonorgestrel was discovered in 1963 and was introduced for medical use together with ethinylestradiol in 1970.[2, 3] It is listed as an essential medicine by the World Health Organization, being the most effective and safe medicines needed in a health system.[4] It is available as a generic medication.[5]
Levonorgestrel is a levo-isomer of Norgestrel. The progestins include the naturally occurring hormone progesterone, 17a-acetoxyprogesterone derivatives in the pregnane series, 19-nortestosterone derivatives(estranes), and norgestrel and related compounds in the gonane series. The 19-nortestosterone derivatives were developed for use as progestins in oral contraceptives, and while their predominant activity is progestational, they exhibit androgenic and other activities. The gonanes are a more recently developed series of "19-nor" compounds, containing an ethyl rather than a methyl substituent in the 13-position, and they have diminished androgenic activity


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