Molecular formula
C16H22N2

SMILES
C[C@H]1C(C2=C(C1(C)C)C3=NC=NC=C3CC2)(C)C

Fragrance
Musk	69.44%
Floral	61.47%
Amber	55.59%
Woody	54.07%
Powdery	50.82%
Dry	39.13%
Animal	38.21%
Vetiver	31.78%
Sweet	30.37%
Orris	28.81%

 

Flavor
Woody	46.38%
Bitter	45.08%
Camphor	42.38%
Earth	25.71%
Earthy	25.7%
Musty	23.07%
Pine	22.58%
Fir needle	21.9%
Ripe apricot	21.13%
Patchouli	21.1%

 

Odor impact est.
Medium

XLogP3-AA
3.3

pKa est.
6.73 (neutral)

Molecular weight
242.36 g/mol

Vapor pressure est.

• hPa @ 20°C
• hPa @ 25°C

Evaporation rate
Ultra slow

Boiling point est.
381°C

Flash point

• 172.48 ˚C est.

• EC 801-093-8
• 7,7,8,9,9-Pentamethyl-6,7,8,9-tetrahydro-5H-cyclopenta(H)quinazoline
• SCHEMBL11907881
• YVFVTDLZSKSFCQ-JTQLQIEISA-N

7,7,8,9,9-Pentamethyl-6,7,8,9-tetrahydro-5H-cyclopenta(H)quinazoline is commonly used as an intermediate in pharmaceutical synthesis and as a building block in medicinal chemistry to access potential quinazoline derivatives. It serves as a molecular scaffold for lead discovery and optimization, and is often employed in library synthesis and high-throughput screening to diversify heterocyclic chemotypes containing a quinazoline core. In research settings it can function as a reaction substrate to develop new quinazoline products. Depending on local regulations and formulation constraints, it may be explored as a rigid core for materials science studies and specialty polymers.

gpt-5-nano

Solvent	Solubility (g/L)
ethanol	48.72
methanol	49.84
isopropanol	37.25
water	0.46
ethyl acetate	178.16
n-propanol	64.15
acetone	173.58
n-butanol	56.19
acetonitrile	139.95
DMF	313.57
toluene	369.63
isobutanol	53.98
1,4-dioxane	302.16
methyl acetate	180.87
THF	516.15
2-butanone	195.56
n-pentanol	35.56
sec-butanol	40.16
n-hexane	8.46
ethylene glycol	14.82
NMP	437.56
cyclohexane	32.08
DMSO	136.08
n-butyl acetate	180.05
n-octanol	33.5
chloroform	748.98
n-propyl acetate	109.9
acetic acid	75.41
dichloromethane	720.88
cyclohexanone	399.99
propylene glycol	17.63
isopropyl acetate	129.67
DMAc	251.16
2-ethoxyethanol	57.99
isopentanol	56.45
n-heptane	10.38
ethyl formate	125.43
1,2-dichloroethane	423.4
n-hexanol	84.06
2-methoxyethanol	112.14
isobutyl acetate	99.15
tetrachloromethane	160.44
n-pentyl acetate	143.55
transcutol	182.55
n-heptanol	53.31
ethylbenzene	124.7
MIBK	114.35
2-propoxyethanol	155.93
tert-butanol	43.45
MTBE	71.11
2-butoxyethanol	107.94
propionic acid	88.74
o-xylene	197.09
formic acid	31.1
diethyl ether	95.83
m-xylene	223.22
p-xylene	181.15
chlorobenzene	426.26
dimethyl carbonate	139.28
n-octane	4.83
formamide	61.55
cyclopentanone	534.97
2-pentanone	156.95
anisole	173.94
cyclopentyl methyl ether	238.46
gamma-butyrolactone	562.52
1-methoxy-2-propanol	91.12
pyridine	508.57
3-pentanone	165.45
furfural	461.02
n-dodecane	3.46
diethylene glycol	90.62
diisopropyl ether	41.27
tert-amyl alcohol	42.41
acetylacetone	211.76
n-hexadecane	4.42
acetophenone	193.57
methyl propionate	184.3
isopentyl acetate	187.77
trichloroethylene	878.1
n-nonanol	33.97
cyclohexanol	95.73
benzyl alcohol	127.72
2-ethylhexanol	63.68
isooctanol	47.57
dipropyl ether	72.42
1,2-dichlorobenzene	383.96
ethyl lactate	57.17
propylene carbonate	300.88
n-methylformamide	156.23
2-pentanol	35.24
n-pentane	10.07
1-propoxy-2-propanol	106.91
1-methoxy-2-propyl acetate	208.57
2-(2-methoxypropoxy) propanol	85.81
mesitylene	121.13
ε-caprolactone	331.35
p-cymene	95.54
epichlorohydrin	558.57
1,1,1-trichloroethane	425.25
2-aminoethanol	32.11
morpholine-4-carbaldehyde	371.23
sulfolane	471.31
2,2,4-trimethylpentane	9.06
2-methyltetrahydrofuran	310.76
n-hexyl acetate	138.63
isooctane	6.94
2-(2-butoxyethoxy)ethanol	101.31
sec-butyl acetate	90.47
tert-butyl acetate	129.39
decalin	20.15
glycerin	29.04
diglyme	210.18
acrylic acid	97.99
isopropyl myristate	53.95
n-butyric acid	120.2
acetyl acetate	145.05
di(2-ethylhexyl) phthalate	75.79
ethyl propionate	110.81
nitromethane	198.46
1,2-diethoxyethane	97.48
benzonitrile	279.4
trioctyl phosphate	50.76
1-bromopropane	179.38
gamma-valerolactone	570.86
n-decanol	24.21
triethyl phosphate	78.28
4-methyl-2-pentanol	33.36
propionitrile	153.22
vinylene carbonate	332.61
1,1,2-trichlorotrifluoroethane	262.16
DMS	193.62
cumene	82.39
2-octanol	33.59
2-hexanone	103.28
octyl acetate	68.5
limonene	97.75
1,2-dimethoxyethane	131.07
ethyl orthosilicate	73.36
tributyl phosphate	59.5
diacetone alcohol	106.8
N,N-dimethylaniline	124.62
acrylonitrile	220.71
aniline	238.76
1,3-propanediol	50.1
bromobenzene	512.14
dibromomethane	423.16
1,1,2,2-tetrachloroethane	541.32
2-methyl-cyclohexyl acetate	133.62
tetrabutyl urea	71.47
diisobutyl methanol	40.39
2-phenylethanol	187.01
styrene	145.3
dioctyl adipate	76.85
dimethyl sulfate	193.83
ethyl butyrate	121.11
methyl lactate	75.61
butyl lactate	96.17
diethyl carbonate	94.48
propanediol butyl ether	66.71
triethyl orthoformate	94.7
p-tert-butyltoluene	87.87
methyl 4-tert-butylbenzoate	151.26
morpholine	278.46
tert-butylamine	34.17
n-dodecanol	17.84
dimethoxymethane	214.34
ethylene carbonate	259.46
cyrene	135.6
2-ethoxyethyl acetate	189.7
2-ethylhexyl acetate	171.1
1,2,4-trichlorobenzene	429.41
4-methylpyridine	470.1
dibutyl ether	42.68
2,6-dimethyl-4-heptanol	40.39
DEF	170.9
dimethyl isosorbide	226.9
tetrachloroethylene	413.05
eugenol	145.16
triacetin	133.26
span 80	79.26
1,4-butanediol	21.56
1,1-dichloroethane	336.76
2-methyl-1-pentanol	41.64
methyl formate	161.4
2-methyl-1-butanol	54.9
n-decane	6.48
butyronitrile	125.4
3,7-dimethyl-1-octanol	38.81
1-chlorooctane	38.39
1-chlorotetradecane	14.58
n-nonane	5.55
undecane	4.53
tert-butylcyclohexane	16.11
cyclooctane	13.92
cyclopentanol	108.41
tetrahydropyran	274.34
tert-amyl methyl ether	66.15
2,5,8-trioxanonane	130.58
1-hexene	32.37
2-isopropoxyethanol	52.82
2,2,2-trifluoroethanol	62.69
methyl butyrate	133.47

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