Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,4-Pyrimidinediamine,5-(3,4-dichlorophenyl)-6-ethyl-
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Purity: 98.0%
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18588-57-3

18588-57-3 structure

Name: 2,4-Pyrimidinediamine,5-(3,4-dichlorophenyl)-6-ethyl-
Chemical Name: 5-(3,4-dichlorophenyl)-6-ethylpyrimidine-2,4-diamine
CAS Number: 18588-57-3
Molecular Formula: C₁₂H₁₂Cl₂N₄
Molecular Weight: 283.15600
Create Date: 2016-12-10 04:41:53
Modify Date: 2025-08-29 17:41:03

Name	5-(3,4-dichlorophenyl)-6-ethylpyrimidine-2,4-diamine
Synonyms	Etoprine (USAN) ETOPRINE 5-(3,4-dichloro-phenyl)-6-ethyl-pyrimidine-2,4-diamine 6-ethyl-5-(3,4-dichloro-phenyl)-pyrimidine-2,4-diyldiamine Ethodichlorophen 6-Aethyl-5-(3,4-dichlor-phenyl)-pyrimidin-2,4-diyldiamin 2,4-Diamino-5-(3,4-dichlor-phenyl)-6-ethyl-pyrimidin DDEP 2,4-diamino-5-(3',4'-dichlorophenyl)-6-ethylpyrimidine

Density	1.398g/cm3
Boiling Point	518.3ºC at 760 mmHg
Molecular Formula	C₁₂H₁₂Cl₂N₄
Molecular Weight	283.15600
Flash Point	267.3ºC
Exact Mass	282.04400
PSA	77.82000
LogP	4.33960
Vapour Pressure	7.59E-11mmHg at 25°C
Index of Refraction	1.661

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV8150000

CHEMICAL NAME :: Pyrimidine, 2,4-diamino-5-(3,4-dichlorophenyl)-6-ethyl-

CAS REGISTRY NUMBER :: 18588-57-3

BEILSTEIN REFERENCE NO. :: 0244129

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C12-H12-Cl2-N4

MOLECULAR WEIGHT :: 283.18

WISWESSER LINE NOTATION :: T6N CNJ BZ DZ ER CG DG F2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 66 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :: Mutation in microorganisms

TEST SYSTEM :: Bacteria - Escherichia coli

DOSE/DURATION :: 1 mg/disc

REFERENCE :: APMBAY Applied Microbiology. (Washington, DC) V.1-30, 1953-75. For publisher information, see AEMIDF. Volume(issue)/page/year: 6,23,1958

HS Code	2933599090

186581-53-3

77186-55-1

18588-57-3

Literature: Russell; Hitchings Journal of the American Chemical Society, 1951 , vol. 73, p. 3763,3766

77186-55-1

18588-57-3

Literature: Tarnchompoo, Bongkoch; Sirichaiwat, Chawanee; Phupong, Worrapong; Intaraudom, Chakapong; Sirawaraporn, Worachart; Kamchonwongpaisan, Sumalee; Vanichtanankul, Jarunee; Thebtaranonth, Yodhathai; Yuthavong, Yongyuth Journal of Medicinal Chemistry, 2002 , vol. 45, # 6 p. 1244 - 1252

1445-45-0

77186-55-1

18588-57-3

Literature: Burroughs Wellcome and Co. Patent: US2594309 , 1950 ;

3218-49-3

18588-57-3

Literature: Russell; Hitchings Journal of the American Chemical Society, 1951 , vol. 73, p. 3763,3766

Precursor 4
3218-49-3 186581-53-3 77186-55-1 1445-45-0
DownStream 0

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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