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4H-Cyclopenta[def]phenanthrene

4H-Cyclopenta[def]phenanthrene structure

CAS No.: 203-64-5

Chemical Name:: 4H-Cyclopenta[def]phenanthrene

Synonyms: Nsc88888;Benzo[def]fluorene;benzo(def)fluorene;Methylenephenanthrene;Cyclopentaphenanthrene;Wln: L566 B6 2ab o dhj;4,5-Phenanthrylenemethane;4,5-METHYLENEPHENANTHRENE;Cyclopenta[def]phenanthrene;Phenanthrene, 4,5-methylene-

CBNumber:: CB2293929

Molecular Formula:: C15H10

Molecular Weight:: 190.24

MDL Number:: MFCD00003804

MOL File:: 203-64-5.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:50:37

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4H-Cyclopenta[def]phenanthrene Properties

Melting point	113-115 °C(lit.)
Boiling point	353 °C(lit.)
Density	1.1031 (estimate)
refractive index	1.5000 (estimate)
Water Solubility	1.1mg/L(27 ºC)
BRN	2043908
Stability	Stable. Combustible. Incompatible with strong oxidizing agents.
InChI	1S/C15H10/c1-3-10-7-8-11-4-2-6-13-9-12(5-1)14(10)15(11)13/h1-8H,9H2
InChIKey	RKZDZWJDQTZDLD-UHFFFAOYSA-N
SMILES	C1c2cccc3ccc4cccc1c4c23
CAS DataBase Reference	203-64-5(CAS DataBase Reference)
FDA UNII	U16R456Q1Y
EPA Substance Registry System	4H-Cyclopenta[def]phenanthrene (203-64-5)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

PPE	Eyeshields, Gloves, type N95 (US)
Risk Statements	36/37/38
Safety Statements	22-24/25
RIDADR	2811
WGK Germany	3
RTECS	GY5280000
HazardClass	6.1(b)
PackingGroup	III
Storage Class	11 - Combustible Solids

4H-Cyclopenta[def]phenanthrene price More Price(4)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	261424	Cyclopenta[d,e,f]phenanthrene 97%	203-64-5	500mg	$396	2026-04-30	Buy
aablocks	AA0028JU	4,5-Methylenephenanthrene	203-64-5	100mg	$783	2026-05-28	Buy
AHH	MT-17867	4,5-Methylenephenanthrene 97%		10g	$880	2026-05-26	Buy
American Custom Chemicals Corporation	CHM0011748	4H-CYCLOPENTA[DEF]PHENANTHRENE 95.00%	203-64-5	500MG	$752.51	2021-12-16	Buy

Product number	Packaging	Price	Buy
261424	500mg	$396	Buy
AA0028JU	100mg	$783	Buy
MT-17867	10g	$880	Buy
CHM0011748	500MG	$752.51	Buy

4H-Cyclopenta[def]phenanthrene Chemical Properties, Uses, Production

Chemical Properties

white crystals

Uses

Cyclopenta[d,e,f]phenanthrene (4,5-methylenephenanthrene) has been used as an indicator in the synthesis of homopolymers and block copolymers of styrene and dienes with variable 1,2-polydiene content.

4H-Cyclopenta[def]phenanthrene Preparation Products And Raw materials

Raw materials

Preparation Products

4H-Cyclopenta[def]phenanthrene Suppliers

Global Suppliers ( 64)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
3B Pharmachem (Wuhan) International Co.,Ltd.	18930552037	3bsc@sina.com	China	15813	69
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Shandong Xiya Chemical Co., Ltd	13355009207 13355009207	3007715519@qq.com	China	18722	57
Maya High Purity Chemicals	+86 (573) 82222445 (0)18006601000 452520369	sales@maya-r.com	China	11693	57
9ding chemical ( Shanghai) Limited	4009209199	sales@9dingchem.com	China	22497	55
Finetech Industry Limited	027-87465837 19945049750	sales@finetechnology-ind.com	China	9331	58
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51389	80
Shandong Ono Chemical Co., Ltd.	0539-6362799 20）		China	10007	58
Shenzhen Polymeri Biochemical Technology Co., Ltd.	+86-400-002-6226	sales@rrkchem.com	China	57336	58

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
3B Pharmachem (Wuhan) International Co.,Ltd.	69
Energy Chemical	61
Shandong Xiya Chemical Co., Ltd	57
Maya High Purity Chemicals	57
9ding chemical ( Shanghai) Limited	55
Finetech Industry Limited	58
Sigma-Aldrich	80
Shandong Ono Chemical Co., Ltd.	58
Shenzhen Polymeri Biochemical Technology Co., Ltd.	58

4H-Cyclopenta[def]phenanthrene Spectrum

4H-CYCLOPENTA[DEF]PHENANTHRENE(203-64-5)MS 4H-CYCLOPENTA[DEF]PHENANTHRENE(203-64-5)¹HNMR 4H-CYCLOPENTA[DEF]PHENANTHRENE(203-64-5)¹³CNMR 4H-CYCLOPENTA[DEF]PHENANTHRENE(203-64-5)IR1 4H-CYCLOPENTA[DEF]PHENANTHRENE(203-64-5)Raman

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