Urandiol-17a-tosylat, also known as 17α-tosyl-5β-androstane-3α,17β-diol, is a chemical compound derived from the steroid androstane. It is a white crystalline solid with a molecular formula of C21H32O4S and a molecular weight of 380.54 g/mol. Urandiol-17a-tosylat is primarily used as an intermediate in the synthesis of various steroidal drugs, including contraceptives and hormone replacement therapies. The 17α-tosylat group in the molecule serves as a protecting group, which can be removed under specific conditions to yield the desired steroidal product. Urandiol-17a-tosylat is an important compound in the pharmaceutical industry due to its role in the production of these medications.

4975-40-0

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Basic information
1. Product Name: Urandiol-17a-tosylat
2. Synonyms:
3. CAS NO:4975-40-0
4. Molecular Formula:
5. Molecular Weight: 474.705
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Urandiol-17a-tosylat(CAS DataBase Reference)
10. NIST Chemistry Reference: Urandiol-17a-tosylat(4975-40-0)
11. EPA Substance Registry System: Urandiol-17a-tosylat(4975-40-0)
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: 4975-40-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4975-40-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,7 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4975-40:
(6*4)+(5*9)+(4*7)+(3*5)+(2*4)+(1*0)=120
120 % 10 = 0
So 4975-40-0 is a valid CAS Registry Number.

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