3α-(Trimethylsiloxy)-5α-androstan-17-one is a synthetic steroid compound with the molecular formula C21H40OSi. It is a derivative of the naturally occurring steroid androstane, featuring a 17-ketone group and a 3α-trimethylsiloxy substituent. 3α-(Trimethylsiloxy)-5α-androstan-17-one is primarily used in organic synthesis, particularly in the preparation of various steroidal compounds and pharmaceuticals. The trimethylsiloxy group serves as a protecting group for the 3α-hydroxyl function, which can be selectively removed under mild conditions when needed. This property makes it a valuable intermediate in the synthesis of complex steroidal structures, allowing chemists to control the reactivity of specific functional groups during the synthesis process.

7337-91-9

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Basic information
1. Product Name: 3α-(Trimethylsiloxy)-5α-androstan-17-one
2. Synonyms: 3α-(Trimethylsiloxy)-5α-androstan-17-one
3. CAS NO:7337-91-9
4. Molecular Formula: C22H38O2Si
5. Molecular Weight: 362.62142
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 7337-91-9.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: 3α-(Trimethylsiloxy)-5α-androstan-17-one(CAS DataBase Reference)
10. NIST Chemistry Reference: 3α-(Trimethylsiloxy)-5α-androstan-17-one(7337-91-9)
11. EPA Substance Registry System: 3α-(Trimethylsiloxy)-5α-androstan-17-one(7337-91-9)
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: 7337-91-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 7337-91-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,3 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7337-91:
(6*7)+(5*3)+(4*3)+(3*7)+(2*9)+(1*1)=109
109 % 10 = 9
So 7337-91-9 is a valid CAS Registry Number.

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