Tenoxicam|Lornoxicam|Lomefloxacin Hydrochloride|Lomefloxacin Hydrochloride Series|Methyl-3-amino-2-thiophene carboxylate|Triasulfuron|Trichloroacetonitrile--Changzhou Lanming Science and Technology Co., Ltd.


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Lomefloxacin Hydrochloride

Tenoxicam Series

Lornoxicam Series

Lomefloxacin Hydrochloride Series

2,3-Cyclopenteno pyridine

Trichloroacetonitrile

Category	Product name	CAS No.	Molecular formula/molecular weight	Quality index
Tenoxicam and intermediates	Tenoxicam	59804-37-4	C₁₃H₁₁N₃O₄S₂ 337.4	BP02、EP5
	Methyl-3-amino -2-thiophene carboxylate	22288-78-4	C₆H₇NO₂S 157.19	Appearance: similar to white crystalline powder Assay: ≥99%(HPLC)
	Methyl-3-chlorosulfonyl thiophene-2- carboxylate	59337-92-7	C₆H₅ClO₄S₂ 240.5	Appearance: light yellow powder Assay: ≥95%(HPLC) M.P.: 58-62℃
	Methyl-3-sulfonyl amino methyl acetate-2-thiophene carboxylate	106820-63-7	C₉H₁₁NO₆S₂ 293.32	Appearance: similar to white crystalline powder Assay: ≥99%(HPLC) Drying loss: ≤1.0%
	methy1 4-hydroxy-2H-thieno[2,3 -e]-1,2-thiazine-3-carboxylate-1,1-dioxide		C₈H₇NO₅S₂ 261	Appearance: 土yellow powder Assay: ≥95%(HPLC) Drying loss: ≤1.0%
	methy1 2- methyl -4-hydroxy-2H-thieno[2,3-e]-1,2-thiazine-3-carboxylatelate-1,1-dioxide	59804-25-0	C₉H₉NO₅S₂ 275	Appearance: similar to white powder Assay: ≥98%(HPLC) Drying loss: ≤1.0%

Category	Product name	CAS No.	Molecular formula/molecular weight	Quality index
Lornoxicam and intermediates	Lornoxicam	70374-39-9	C₁₃H₁₀ClN₃O₄S₂ 371.5	Appearance: yellow crystalline powder Assay: 98%~101.0% Total impurities: ≤1.0% Single impurity: ≤0.5%(HPLC)
	Methyl-5-chloro-3-chlorosulfonyl-2-thiophene carboxylate		C₆H₄Cl₂2S₂ 275	Appearance: yellow powder Assay: ≥95% (HPLC)
	5-chloro-3-sulfonglamino methyl acetate-Thiophene 2-carboxylic acid methyl ester		C₉H₁₀ClNO₆S₂ 327.5	Appearance: similar to white crystalline powder Assay: ≥98%(HPLC) M.P.: 115-120℃ Drying loss: ≤1.0 %
	5-Chloro-3-(N-methylsulfamoyl)-thiohene-2-carboxylic acid methyl ester	70374-37-7	C₇H₈ClNO₄S₂ 270.5	Appearance: similar to white powder Assay: ≥98%(HPLC)
	5-Chloro-3-[N-(methoxycarbonylmethyl)-N-methylsulfamoyl]-thiophene-2-carboxylic acid methyl ester	70374-38-8	C₁₀H₁₂ClNO₆S₂ 341.5	Appearance: similar to white powder Assay: ≥98%(HPLC)
	6-chloro-4- hydroxy-2-methyl-3- methoxycarbonyl-2H-thieno[2,3-e]-1,2-thiazine-1,1-dioxide	70415-50-8	C₉H₈ClNO₂S₂ 309.5	Appearance: light yellow powder Assay: ≥98%(HPLC) M.P.: 200-202℃ Drying loss: ≤1.0%

Category	Product name	CAS No.	Molecular formula/molecular weight	Quality index
Intermediates of quinolones seires drugs	Lomefloxacin Hydrochloride	98079-51-7 98079-52-8	C₁₇H₁₉F₂₁N₅O₃ 387.81	Appearance: white crystalline powder Assay: 98.0-102.0% Relevant substances: ≤1.0% Drying loss: ≤0.5%
	1-Ethyl-6,7,8-trifluoro-4-oxohydroquinoline-3-carboxylic acid ethyl ester	100501-62-0	C₁₄H₁₂F₃NO₃ 299.25	Appearance: similar to white crystalline powder M.P.: ≥203°C Assay: ≥98.5%(HPLC) Drying loss: ≤1.0%
	1-Ethy-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid	75338-42-0	C₁₂H₈F₃NO₃ 271.2	Appearance: white crystalline powder M.P.: ≥258°C Assay: ≥98%(HPLC) Drying loss: ≤1.0%

Category	Product name	CAS No.	Molecular formula/molecular weight	Quality index
Fine chemical products	2,3-Cyclopenteno pyridine	533-37-9	C₈H₉N 119	Appearance: colorless to light yellow transparent liquid Assay: ≥98%(HPLC) Water content: ≤0.5%
	2,4-Dihydroxyquinazoline	86-96-4	C₈H₆N₂O₂ 162.15	Assay: ≥98%(HPLC) Drying loss: ≤0.5%
	Trichloroacetonitrile	545-06-2	Cl₃CCN 114.39	Appearance: colorless transparent liquid Assay: ≥99.5%

Category	Product name	CAS No.	Molecular formula/molecular weight	Quality index
Pesticide intermediates	Triasulfuron	82097-50-5	C₅H₁₆ClN₅O₅S 401.8	Herbicide
Pesticide intermediates	2-(2-chloroethoxy)benzenesulfonamide	82097-01-06	C₈H₁₀ClNO₃S 235.69	Used in the synthesis of Triasulfuron Appearance: white crystal Assay: ≥95%

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