Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Piritrexim
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Piritrexim
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Purity: 98.0%
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72732-56-0

72732-56-0 structure

72732-56-0 structure

Name: Piritrexim
Chemical Name: 6-[(2,5-dimethoxyphenyl)methyl]-5-methylpyrido[2,3-d]pyrimidine-2,4-diamine
CAS Number: 72732-56-0
Molecular Formula: C₁₇H₁₉N₅O₂
Molecular Weight: 325.36500
Create Date: 2018-06-03 08:00:00
Modify Date: 2025-08-28 16:42:25

Name	6-[(2,5-dimethoxyphenyl)methyl]-5-methylpyrido[2,3-d]pyrimidine-2,4-diamine
Synonyms	6-(2,5-dimethoxybenzyl)-5-methylpyrido[2,3-d]pyrimidine-2,4-diamine Piritrexime [French] BW-301U 2,4-diamino-6-(2,5-dimethoxybenzyl)-5-methylpyrido[2,3-d ]pyrimidine 2,4-diamino-6-(2,5-dimethoxybenzyl)-2-methylpyrido[2,3-d]pyrimidine Piritrexim Piritrexima [Spanish] Piritreximum [Latin]

Density	1.294g/cm3
Boiling Point	603.315ºC at 760 mmHg
Molecular Formula	C₁₇H₁₉N₅O₂
Molecular Weight	325.36500
Flash Point	318.674ºC
Exact Mass	325.15400
PSA	109.17000
LogP	3.26800
Index of Refraction	1.674

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV1155860

CHEMICAL NAME :: Pyrido(2,3-d)pyrimidine-2,4-diamine, 6-((2,5-dimethoxyphenyl)methyl)-5-methyl-

CAS REGISTRY NUMBER :: 72732-56-0

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C17-H19-N5-O2

MOLECULAR WEIGHT :: 325.41

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1168 mg/kg

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

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 500 mg/kg

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

MUTATION DATA

TYPE OF TEST :: DNA damage

TEST SYSTEM :: Rodent - mouse

DOSE/DURATION :: leu 10

REFERENCE :: BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 65,503,1992

HS Code	2933990090

Precursor 9
72676-85-8 93-02-7 72676-82-5 72676-83-6
72676-84-7 847234-66-6 71493-76-0 410547-37-4
180994-87-0
DownStream 0

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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