(17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one is a complex organic compound with the molecular formula C22H40OSi. It is a derivative of the steroidal skeleton, specifically a norpregnane, which lacks one carbon atom in the side chain compared to the standard pregnane structure. The compound features a 4-en-3-one functional group, indicating a ketone at the 3-position and a double bond at the 4-position in the steroid nucleus. The 17S configuration refers to the stereochemistry at the 17-position, where the hydroxyl group is oriented on the same side as the methyl group at the 10-position when viewed from the D-ring. The trimethylsiloxy group at the 17-position provides (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one with unique chemical properties, making it a potentially useful intermediate in the synthesis of various steroidal compounds and pharmaceuticals.

6689-89-0

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Basic information
1. Product Name: (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one
2. Synonyms: (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one
3. CAS NO:6689-89-0
4. Molecular Formula: C23H38O2Si
5. Molecular Weight: 374.63
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6689-89-0.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one(CAS DataBase Reference)
10. NIST Chemistry Reference: (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one(6689-89-0)
11. EPA Substance Registry System: (17S)-17-(Trimethylsiloxy)-19-norpregn-4-en-3-one(6689-89-0)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 6689-89-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6689-89-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,8 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6689-89:
(6*6)+(5*6)+(4*8)+(3*9)+(2*8)+(1*9)=150
150 % 10 = 0
So 6689-89-0 is a valid CAS Registry Number.

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