Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3-CHLORO-2-METHYL-4H-PYRIDO[1,2-A]PYRIMIDIN-4-ONE
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-CHLORO-2-METHYL-4H-PYRIDO[1,2-A]PYRIMIDIN-4-ONE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

16867-33-7

16867-33-7 structure

16867-33-7 structure

Name: 3-CHLORO-2-METHYL-4H-PYRIDO[1,2-A]PYRIMIDIN-4-ONE
Chemical Name: 3-chloro-2-methylpyrido[1,2-a]pyrimidin-4-one
CAS Number: 16867-33-7
Molecular Formula: C₉H₇ClN₂O
Molecular Weight: 194.61800
Create Date: 2019-01-02 20:42:49
Modify Date: 2025-09-11 02:15:48

Name	3-chloro-2-methylpyrido[1,2-a]pyrimidin-4-one
Synonyms	HMS546H13 2-Methyl-3-chlor-4H-pyrido<1.2-a>pyrimidinon-(4) 3-Chlor-2-methyl-4H-pyrido-pyrimidin-4-on 3-chloro-2-methyl-pyrido[1,2-a]pyrimidin-4-one 3-chloro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

Density	1.37g/cm3
Boiling Point	294.6ºC at 760mmHg
Molecular Formula	C₉H₇ClN₂O
Molecular Weight	194.61800
Flash Point	132ºC
Exact Mass	194.02500
PSA	34.37000
LogP	1.65630
Vapour Pressure	0.0016mmHg at 25°C
Index of Refraction	1.642

HS Code	2933990090

504-29-0 structure

504-29-0

609-15-4 structure

609-15-4

~40%

16867-33-7 structure

16867-33-7

Literature: Balogh, Maria; Hermecz, Istvan; Szilagyi, Ildiko; Meszaros, Zoltan Heterocycles, 1983 , vol. 20, # 6 p. 1083 - 1088

Precursor 2
504-29-0 609-15-4
DownStream 1
934-37-2

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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