Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI) is a complex organic compound with the chemical formula C19H30O3. It is a steroidal ketone, specifically a derivative of androstane, which is a type of steroid. Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI) is characterized by the presence of a ketone group at the 3-position and two hydroxyl groups at the 16 and 17 positions. The stereochemistry of the compound is indicated by the (9b,10a,16a,17b) notation, which describes the spatial arrangement of the atoms at these positions. Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI) is of interest in the field of organic chemistry and may have applications in pharmaceuticals or as an intermediate in the synthesis of other steroidal compounds.

2781-80-8

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Basic information
1. Product Name: Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI)
2. Synonyms: 9b,10a-Androst-4-en-3-one, 16a,17b-dihydroxy- (7CI,8CI); 16a-Hydroxyretrotestosterone; Retrotestosterone, 16a-hydroxy-
3. CAS NO:2781-80-8
4. Molecular Formula: C19H28 O3
5. Molecular Weight: 304.43
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: Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI)(CAS DataBase Reference)
10. NIST Chemistry Reference: Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI)(2781-80-8)
11. EPA Substance Registry System: Androst-4-en-3-one,16,17-dihydroxy-, (9b,10a,16a,17b)- (9CI)(2781-80-8)
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: 2781-80-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2781-80-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2781-80:
(6*2)+(5*7)+(4*8)+(3*1)+(2*8)+(1*0)=98
98 % 10 = 8
So 2781-80-8 is a valid CAS Registry Number.

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