Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Methyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

35511-15-0

35511-15-0 structure

Name: Methyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide
Chemical Name: methyl 4-hydroxy-2-methyl-1,1-dioxo-1λ6,2-benzothiazine-3-carboxylate
CAS Number: 35511-15-0
Molecular Formula: C₁₁H₁₁NO₅S
Molecular Weight: 269.274
Create Date: 2018-07-14 15:34:03
Modify Date: 2026-07-07 14:49:24

Name	methyl 4-hydroxy-2-methyl-1,1-dioxo-1λ6,2-benzothiazine-3-carboxylate
Synonyms	Piroxicam Impurity 10(Piroxicam Impurity J) Methyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-cboxylate 1,1-dioxide (Piroxicam Impurity) methyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate Piroxicam Impurity J 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC METHYL ESTER-1,1-DIOXIDE 2-Methyl-4-Hydroxy-2H-1,2-Benzotiazine-3-CboxylicAicdEthylEster-1,1-Dioxide 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC ACID METHYL ESTER 1,1-DIOXIDE 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylic acid methyl ester 1,1 Methyl 4-hydroxy-2-methyl-1,1-dioxo-1,2-dihydro-1,2-benzothiazine-3-cboxylate Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate-1,1-dioxide 1, 1-dioxide, 2-methyl-4-hydroxy-2H-1, 2-benzothiazole-3-cboxylic acid, methyl ester 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC METHYL ESTER-1,1-DIOXIDE MIN Meloxicam Impurity E methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-dioxide Meloxicam Impurity 5(Meloxicam Impurity E) METHYL 4-HYDROXY-2-METHYL-1,1-DIOXO-1Λ6,2-BENZOTHIAZINE-3-CBOXYLATE EINECS 252-601-4 2H-1,2-Benzothiazine-3-carboxylic acid, 4-hydroxy-2-methyl-, methyl ester, 1,1-dioxide Methyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-cboxylate 1 4-Hydroxy-2-methyl-3-(methoxycbonyl)-2H-1,2-benzothiazine 1,1-dioxide 2-methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic acid methyl ester 1,1-dioxide 4-hydroxy-2-methyl-3-methoxycarbonyl-2H-1,2-benzothiazine-1,1-dioxide methyl 4-hydroxy-2-methyl-2H-benzo[e][1,2]thiazine-3-cboxylate 1,1-dioxide Methyl Benzithiazine Methyl Ester (4-Hydroxy-2-Methyl-2 H-1, 2Benzothiazine-3- Cboxylic acid methyl ester-1,1-dioxide Meloxicam Impurity E (Piroxicam Impurity J) Methyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-c 4-Hydroxy – 2– Methyl-2H-1,2-Benzothiazine-3-Cboxylic Acid 1,1-Dioxide Methyl Ester Piroxicam Related Compound J Methyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-cboxylate 1,1-Dioxide (Piroxicam Impurity J) 4-Hydroxy, 2-Methyl, 2h,1,2-Benzothiazine Cboxylic acid Methyl Ester-1,1-Dioxide Piroxicam IMP J Methyl 4-hydroxy-2-methyl-1,1-dioxo-2H-1,2-benzothiazine-3-cboxylate Meloxicam BP Impurity D Methyl 2-methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic methyl ester-1,1-dioxide Methyl4-hydroxy-2-methyl-2H-1,2-benzothiazine3-cboxylate1,1-dioxide 2-Methyl-4-hydroxy-2H-1,2-benzisothiazine-3-cboxylic acid ethyl ester-1,1-dioxide 2H-1,2-Benzothiazine-3-cboxylic acid, 4-hydroxy-2-methyl-, methyl ester, 1,1-dioxide 2-Methyl-3-(methoxycbonyl)-4-hydroxy-2H-1,2-benzothiazine 1,1-dioxide 4-Hydroxy-2-Methyl (3E)-3-[hydroxy(methoxy)methylidene]-2-methyl-1,1-dioxo-1 2-Methyl-4-Hydroxy-2H-1,2-Benzothiazine-3-Carboxylic Methylester-1,1-Dioxide Methyl 4-Hydroxy-2-methyl-2H-1,2-be Piroxicam Impurity J (Meloxicam Impurity E) MFCD00071766 2-Methyl-4-hydroxy-2H-1,2-benzisothiazine-3-cboxylic acid ethyl ester-1,1-diox l^{6},2-benzothiazin-4-one Methyl 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-cboxylate 1,1-dioxide Methyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-Dioxide TIANFUCHEM-35-0-High purity 2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CBOXYLIC METHYL ESTER-1,1-DIOXIDE factory price Piroxicam Impurity JQ: What is Piroxicam Impurity J Q: What is the CAS Number of Piroxicam Impurity J Q: What is the storage condition of Piroxicam Impurity J Q: What e the applications of Piroxicam Impurity J

Density	1.5±0.1 g/cm3
Boiling Point	439.9±55.0 °C at 760 mmHg
Melting Point	163-165ºC
Molecular Formula	C₁₁H₁₁NO₅S
Molecular Weight	269.274
Flash Point	219.8±31.5 °C
Exact Mass	269.035797
PSA	92.29000
LogP	2.25
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.632
Storage condition	-20?C Freezer

Material Safety Data Sheet

Section1. Identiﬁcation of the substance
Product Name: 2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic methyl ester-1,1-dioxide
Synonyms:

Section2. Hazards identiﬁcation
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:2-Methyl-4-hydroxy-2H-1,2-benzothiazine-3-carboxylic methyl ester-1,1-dioxide
CAS number:35511-15-0

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
ﬂushing of the eyes by separating the eyelids with ﬁngers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire ﬁghting measures
In the event of a ﬁre involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualiﬁed
in the handling and use of potentially hazardous chemicals, who should take into account the ﬁre,
health and chemical hazard data given on this sheet.
Store in closed vessels, refrigerated.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not speciﬁed
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C11H11NO5S
Molecular weight:269.3

Section10. Stability and reactivity
Conditions to avoid: Heat, ﬂames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, sulfur oxides.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

SECTION 16 - ADDITIONAL INFORMATION
N/A

HS Code	2934991000

Precursor 9
35511-14-9 77-78-1 15448-99-4 96-34-4
6639-62-9 85727-15-7 74-88-4 128-44-9
81-07-2
DownStream 8
34042-85-8 36322-90-4 34552-84-6 71125-38-7
1145656-36-5 34258-79-2 35511-70-7 35511-63-8