CAS No.27208-37-3,CYCLOPENTA(C,D)PYRENE Suppliers

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Basic Information

Molecular Structure:
CAS No.:	27208-37-3
Name:	CYCLOPENTA(C,D)PYRENE
Article Data:	32

Formula:	C18H10
Molecular Weight:	226.277
Synonyms:	Acepyrene;Acepyrylene; Cyclopenta[c,d]pyrene
Density:	1.357 g/cm³
Melting Point:	175°C
Boiling Point:	438.3 °C at 760 mmHg
Flash Point:	209.2 °C
Safety:	Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
PSA:	0.00000
LogP:	5.06780

Synthetic route

: 85056-99-1
3,4,4a,5-tetrahydrocyclopentapyrene

: 27208-37-3
cyclopenta[c,d]pyrene

Conditions

Conditions	Yield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene for 1h; Heating;	95%

: 154120-55-5
1-(1-chlorovinyl)pyrene

: 27208-37-3
cyclopenta[c,d]pyrene

Conditions

Conditions	Yield
at 1000℃; under 0.01 Torr;	88%
Multi-step reaction with 2 steps 1: 600 °C / 0.01 Torr 2: 1000 °C / 0.01 Torr View Scheme

: 198780-91-5
3,9-Diethynyl-phenanthrene

A: 206-44-0
fluoranthene

B: 27208-37-3
cyclopenta[c,d]pyrene

C: 201-06-9
acephenanthrylene

D: 8-ethynylfluoranthene

E: 9-ethynylacephenanthrylene

Conditions

Conditions	Yield
at 1000℃; under 0.01 Torr; Mechanism; var. of temp.; other polyclic aromatic hydrocarbon with ethynyl subst.;	A 2% B 1% C 4% D 8% E 85%

...Expand

: 198780-91-5
3,9-Diethynyl-phenanthrene

A: 206-44-0
fluoranthene

B: 27208-37-3
cyclopenta[c,d]pyrene

C: 8-ethynylfluoranthene

D: 9-ethynylacephenanthrylene

Conditions

Conditions	Yield
at 1000℃; under 0.01 Torr; Further byproducts given;	A 2% B 1% C 8% D 85%

...Expand

: 69795-73-9
3-hydroxy-3,4-dihydrocyclopentapyrene

: 27208-37-3
cyclopenta[c,d]pyrene

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In toluene for 1h; Heating;	83%
With aluminum oxide In benzene Dehydration;	65%
With toluene-4-sulfonic acid

: 137233-90-0
1,2,2a,3,4,6,7,8-octahydrocyclopentapyrene

: 27208-37-3
cyclopenta[c,d]pyrene

Conditions

Conditions	Yield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene for 16h; Heating;	70%

: 195-19-7
benzo[c]phenathrene

A: 85-01-8
phenanthrene

B: 27208-37-3
cyclopenta[c,d]pyrene

C: 203-12-3
benzo[ghi]fluoranthene

Conditions

Conditions	Yield
at 1150℃; under 0.5 Torr;	A 4% B 41% C 26%

...Expand

: 198780-91-5
3,9-Diethynyl-phenanthrene

A: 206-44-0
fluoranthene

B: 27208-37-3
cyclopenta[c,d]pyrene

C: 201-06-9
acephenanthrylene

D: 8-ethynylfluoranthene

Conditions

Conditions	Yield
at 1025℃; under 0.01 Torr; Further byproducts given;	A 7% B 8% C 16% D 12%

...Expand

: 157729-37-8
3-(4H-cyclopentaphenanthrylidene)-1,5-bis(trimethylsilyl)-1,4-pentadiyne

A: 129-00-0
pyrene

B: 192-97-2
benzo[e]pyrene

C: 203-64-5
4H-Cyclopenta[def]phenanthrene

D: 27208-37-3
cyclopenta[c,d]pyrene

E: 203-12-3
benzo[ghi]fluoranthene

F: 5821-51-2
Coarannulen

Conditions

Conditions	Yield
With hydrogen In gas at 900℃; Product distribution; electrically heated vertical laboratory tubular furnace;	A n/a B n/a C n/a D n/a E n/a F 15%

...Expand

: 157729-37-8
3-(4H-cyclopentaphenanthrylidene)-1,5-bis(trimethylsilyl)-1,4-pentadiyne

A: 129-00-0
pyrene

B: 192-97-2
benzo[e]pyrene

C: 27208-37-3
cyclopenta[c,d]pyrene

D: 5821-51-2
Coarannulen

Conditions

Conditions	Yield
With hydrogen In gas at 900℃; electrically heated vertical laboratory tubular furnace; Further byproducts given;	A n/a B n/a C n/a D 15%

...Expand

Raw Materials

129-00-0

203-12-3

69795-73-9

120-12-7

205-82-3

74-98-6

Downstream Products

129-00-0

203-12-3

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Toxicity Data With Reference

1.	mma-hmn:lym 4 mg/L	JJIND8 JNCI, Journal of the National Cancer Institute. 63 (1979),309.
2.	msc-hmn:lym 50 nmol/L	MUREAV Mutation Research. 128 (1984),221.
3.	otr-mus:fbr 300 µg/L	CNREA8 Cancer Research. 40 (1980),4482.
4.	otr-mus:emb 300 µg/L	EVSRBT Environmental Science Research. 22 (1981),445.
5.	msc-mus:lym 1200 µg/L	CNREA8 Cancer Research. 40 (1980),4482.
6.	msc-ham:lng 300 µg/L	CRNGDP Carcinogenesis. 3 (1982),763.

Consensus Reports

IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 32 , 1983,p. 269.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program.

Safety Profile

Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.