2D

3D

Save

Zoom
- 8 of 8 defined stereocentres

17a-Hydroxy-16b-methylpregnenolone

ChemSpider ID: 93076
Molecular Formula: C₂₂H₃₄O₃
Monoisotopic mass: 346.250793 Da
Systematic name

(3β,16β)-3,17-Dihydroxy-16-methylpregn-5-en-20-one
SMILES and InChIs

SMILES:

O=C([C@@]1(O)[C@H](C[C@H]2[C@H]3[C@H](CC[C@]12C)[C@@]4(C(=C/C3)\C[C@@H](O)CC4)C)C)C Copied

Std. InChI:

InChI=1S/C22H34O3/c1-13-11-19-17-6-5-15-12-16(24)7-9-20(15,3)18(17)8-10-21(19,4)22(13,25)14(2)23/h5,13,16-19,24-25H,6-12H2,1-4H3/t13-,16-,17+,18-,19-,20-,21-,22-/m0/s1 Copied

Std. InChIKey:

MDCCMZGGNCMFPQ-RGEWOSBMSA-N Copied

Names and Identifiers

ChemSpider Searches

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

ACD/LogP:	4.345	# of Rule of 5 Violations:	0
ACD/LogD (pH 5.5):	4.35	ACD/LogD (pH 7.4):	4.35
ACD/BCF (pH 5.5):	1181.58	ACD/BCF (pH 7.4):	1181.58
ACD/KOC (pH 5.5):	5506.41	ACD/KOC (pH 7.4):	5506.40
#H bond acceptors:	3	#H bond donors:	2
#Freely Rotating Bonds:	3	Polar Surface Area:	57.53 Å²
Index of Refraction:	1.562	Molar Refractivity:	98.525 cm³
Molar Volume:	303.965 cm³	Polarizability:	39.058 10^-24cm³
Surface Tension:	46.8160018920898 dyne/cm	Density:	1.14 g/cm³
Flash Point:	260.57 °C	Enthalpy of Vaporization:	86.322 kJ/mol
Boiling Point:	483.917 °C at 760 mmHg	Vapour Pressure:	0 mmHg at 25°C

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  4.13

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  436.20  (Adapted Stein & Brown method)
    Melting Pt (deg C):  182.80  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.36E-010  (Modified Grain method)
    Subcooled liquid VP: 6.02E-009 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1.937
       log Kow used: 4.13 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  41.247 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.41E-006  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  3.201E-011 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.13  (KowWin est)
  Log Kaw used:  -4.006  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  8.136
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.1963
   Biowin2 (Non-Linear Model)     :   0.0016
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.9345  (months      )
   Biowin4 (Primary Survey Model) :   2.9947  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3711
   Biowin6 (MITI Non-Linear Model):   0.0346
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -1.4604
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  8.03E-007 Pa (6.02E-009 mm Hg)
  Log Koa (Koawin est  ): 8.136
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.74 
       Octanol/air (Koa) model:  3.36E-005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.993 
       Mackay model           :  0.997 
       Octanol/air (Koa) model:  0.00268 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 122.3972 E-12 cm3/molecule-sec
      Half-Life =     0.087 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     1.049 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     7.393750 E-17 cm3/molecule-sec
      Half-Life =     0.155 Days (at 7E11 mol/cm3)
      Half-Life =      3.720 Hrs
   Fraction sorbed to airborne particulates (phi): 0.995 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  337
      Log Koc:  2.528 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 2.479 (BCF = 301.4)
       log Kow used: 4.13 (estimated)

 Volatilization from Water:
    Henry LC:  2.41E-006 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      454.1  hours   (18.92 days)
    Half-Life from Model Lake :       5110  hours   (212.9 days)

 Removal In Wastewater Treatment:
    Total removal:              36.40  percent
    Total biodegradation:        0.37  percent
    Total sludge adsorption:    35.94  percent
    Total to Air:                0.09  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.0348          1.34         1000       
   Water     12.6            1.44e+003    1000       
   Soil      82.2            2.88e+003    1000       
   Sediment  5.17            1.3e+004     0          
     Persistence Time: 1.75e+003 hr

Patents	Personal Collections
Publication or Magazine Article	Web-based Article (blog or commentary)
Available Chemicals Databases	Biological Properties
Chemical Reactions	Chemical Safety Data
Drugs or Compounds in Development	Imaging Agents
Information Aggregators	Journal Publishers via MeSH
Ligand/binding/crystal Structure Databases	Metabolic Pathways
Molecular Libraries Screening Center Network	Natural Products
NIH Substance Repository	Physical Properties (including SAR/QSAR databases)
Protein 3D Structures	Spectroscopy Databases
Substance Vendors	Theoretical Properties
Toxicology/Environmental Databases	Virtual Library

Category	Target	PDB Code	LASSO Score
Nuclear Hormone Receptors	MR, mineralocorticoid receptor	2aa2	0.88
Nuclear Hormone Receptors	AR, androgen receptor	1xq2	0.42
Nuclear Hormone Receptors	ER, estrogen receptor; agonist	1l2i	0.41
Nuclear Hormone Receptors	GR, glucocorticoid receptor	1m2z	0.10
Nuclear Hormone Receptors	PR, progesterone receptor	1sr7	0.06
Metalloenzymes	ACE, angiotensin-converting enzyme	1o86	0.03
Nuclear Hormone Receptors	RXRa, retinoic X receptor R	1mvc	0.03
Nuclear Hormone Receptors	PPARg, peroxisome proliferator activated receptor	1fm9	0.03
Other Enzymes	SAHH, S-adenosyl-homocysteine hydrolase	1a7a	0.02
Kinases	SRC, tyrosine kinase SRC	2src	0.01
Other Enzymes	HMGR, hydroxymethylglutaryl-CoA reductase	1hw8	0.01
Serine Proteases	Thrombin	1ba8	0.01
Other Enzymes	HIVPR, HIV protease	1hpx	0.01
Nuclear Hormone Receptors	ER, estrogen receptor; antagonist	3ert	0.01
Metalloenzymes	PDE5, phosphodiesterase 5	1xp0	0.01
Metalloenzymes	ADA, adenosine deaminase	1stw	0.01
Other Enzymes	PARP, poly(ADP-ribose) polymerase	1efy	0.01
Other Enzymes	PNP, purine nucleoside phosphorylase	1b8o	0.00
Other Enzymes	AmpC, AmpC beta-lactamase	1xgj	0.00
Folate Enzymes	DHFR, dihydrofolate reductase	3dfr	0.00
Other Enzymes	HIVRT, HIV reverse transcriptase	1rt1	0.00
Other Enzymes	NA, neuraminidase	1a4g	0.00
Serine Proteases	Trypsin	1bju	0.00
Kinases	VEGFr2, vascular endothelial growth factor receptor	1vr2	0.00
Other Enzymes	GPB, glycogen phosphorylase	1a8i	0.00
Kinases	FGFr1, fibroblast growth factor receptor kinase	1agw	0.00
Other Enzymes	InhA, enoyl ACP reductase	1p44	0.00
Other Enzymes	COX-2, cyclooxygenase-2	1cx2	0.00
Metalloenzymes	COMT, catechol O-methyltransferase	1h1d	0.00
Other Enzymes	ALR2, aldose reductase	1ah3	0.00
Kinases	CDK2, cyclindependent kinase 2	1ckp	0.00
Kinases	TK, thymidine kinase	1kim	0.00
Kinases	HSP90, human heat shock protein 90	1uy6	0.00
Other Enzymes	COX-1, cyclooxygenase-1	1p4g	0.00
Kinases	P38 MAP, P38 mitogen activated protein	1kv2	0.00
Folate Enzymes	GART, glycinamide ribonucleotide transformylase	1c2t	0.00
Kinases	PDGFrb, platelet derived growth factor receptor kinase	N/A	0.00
Other Enzymes	AChE, acetylcholinesterase	1eve	0.00
Kinases	EGFr, epidermal growth factor receptor	1m17	0.00
Serine Proteases	FXa, factor Xa	1f0r	0.00

Want to comment
on this record?

17a-Hydroxy-16b-methylpregnenolone

SMILES:

Std. InChI:

Std. InChIKey:

Names and Identifiers

ChemSpider Searches

Search ChemSpider for:

Search external sites for this structure:

Properties

Spectra

CIFs

Articles

Data Sources

Patents

RSC Databases

Pharmacological Links

SimBioSys LASSO

Want to commenton this record?

17a-Hydroxy-16b-methylpregnenolone

SMILES:

Std. InChI:

Std. InChIKey:

Search ChemSpider for:

Search external sites for this structure:

Want to comment
on this record?