成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
400-158-6606
Inquriy
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook >> CAS DataBase List >> 4-Oxo-4H-1-benzopyran-2-carboxylic acid

4-Oxo-4H-1-benzopyran-2-carboxylic acid

4-Oxo-4H-1-benzopyran-2-carboxylic acid price.
  • $6 - $1667.82
  • Product name: 4-Oxo-4H-1-benzopyran-2-carboxylic acid
  • CAS: 4940-39-0
  • MF: C10H6O4
  • MW: 190.15
  • EINECS:225-583-0
  • MDL Number:MFCD00006838
  • Synonyms:4-oxo-4h-1-benzopyran-2-carboxylicaci ;4-OXO-4H-1-BENZOPYRAN-2-CARBOXYLIC ACID;4-OXO-4H-BENZOPYRAN-2-CARBOXYLIC ACID;4-OXO-4H-CHROMENE-2-CARBOXYLIC ACID;CHROMONE-2-CARBOXYLIC ACID;CHROMOCARB;LABOTEST-BB LT00454887;4-Oxo-4H-1-benzopyran-2-carboxylic acid, 97% 5GR
32 prices
Selected condition：
Brand
  • AHH
  • AK Scientific
  • Alfa Aesar
  • American Custom Chemicals Corporation
  • Arctom
  • Biosynth Carbosynth
  • Chem-Impex
  • Crysdot
  • Heterocyclics
  • Matrix Scientific
  • Sigma-Aldrich
  • SynQuest Laboratories
  • TCI Chemical
  • TRC
Package
  • 100mg
  • 250mg
  • 1G
  • 5g
  • 10G
  • 25g
  • 50g
  • 100g
  • 250g
  • ManufacturerAHH
  • Product numberMT-06733
  • Product descriptionChromone-2-carboxylic Acid 98%
  • Packaging100g
  • Price$298
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberQ157
  • Product descriptionChromone-2-carboxylic Acid
  • Packaging100g
  • Price$321
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA13552
  • Product descriptionChromone-2-carboxylic acid, 97%
  • Packaging5g
  • Price$48.8
  • Updated2023-06-20
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA13552
  • Product descriptionChromone-2-carboxylic acid, 97%
  • Packaging25g
  • Price$152
  • Updated2023-06-20
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA13552
  • Product descriptionChromone-2-carboxylic acid 97%
  • Packaging100g
  • Price$570
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCOR0002982
  • Product descriptionCHROMONE-2-CARBOXYLIC ACID 95.00%
  • Packaging1G
  • Price$117.6
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCOR0002982
  • Product descriptionCHROMONE-2-CARBOXYLIC ACID 95.00%
  • Packaging5G
  • Price$1189.65
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCOR0002982
  • Product descriptionCHROMONE-2-CARBOXYLIC ACID 95.00%
  • Packaging10G
  • Price$1667.82
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging100mg
  • Price$6
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging250mg
  • Price$9
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging1g
  • Price$11
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging5g
  • Price$27
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging10g
  • Price$45
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberAS587322
  • Product description4-Oxo-4H-chromene-2-carboxylicacid 98%
  • Packaging25g
  • Price$100
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth Carbosynth
  • Product numberFC31629
  • Product descriptionChromone-2-carboxylic acid
  • Packaging250g
  • Price$1225
  • Updated2021-12-16
  • Buy
  • ManufacturerBiosynth Carbosynth
  • Product numberFC31629
  • Product descriptionChromone-2-carboxylic acid
  • Packaging100g
  • Price$540
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-06733 Chromone-2-carboxylic Acid 98% 100g $298 2021-12-16 Buy
AK Scientific Q157 Chromone-2-carboxylic Acid 100g $321 2021-12-16 Buy
Alfa Aesar A13552 Chromone-2-carboxylic acid, 97% 5g $48.8 2023-06-20 Buy
Alfa Aesar A13552 Chromone-2-carboxylic acid, 97% 25g $152 2023-06-20 Buy
Alfa Aesar A13552 Chromone-2-carboxylic acid 97% 100g $570 2021-12-16 Buy
American Custom Chemicals Corporation COR0002982 CHROMONE-2-CARBOXYLIC ACID 95.00% 1G $117.6 2021-12-16 Buy
American Custom Chemicals Corporation COR0002982 CHROMONE-2-CARBOXYLIC ACID 95.00% 5G $1189.65 2021-12-16 Buy
American Custom Chemicals Corporation COR0002982 CHROMONE-2-CARBOXYLIC ACID 95.00% 10G $1667.82 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 100mg $6 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 250mg $9 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 1g $11 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 5g $27 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 10g $45 2021-12-16 Buy
Arctom AS587322 4-Oxo-4H-chromene-2-carboxylicacid 98% 25g $100 2021-12-16 Buy
Biosynth Carbosynth FC31629 Chromone-2-carboxylic acid 250g $1225 2021-12-16 Buy
Biosynth Carbosynth FC31629 Chromone-2-carboxylic acid 100g $540 2021-12-16 Buy

Properties

Melting point :260 °C (dec.)(lit.)
Boiling point :285.64°C (rough estimate)
Density :1.3366 (rough estimate)
refractive index :1.5280 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :alcohol: soluble
pka :2.28±0.20(Predicted)
form :Powder
color :White to beige
Water Solubility :sparingly soluble
Merck :14,2237
BRN :146442
CAS DataBase Reference :4940-39-0(CAS DataBase Reference)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Chromone-2-carboxylic acid is used in the cyclic form 3?-oxopyrazolidino[4?,5??2, 3]-chroman-4-one, gives the azide of chromone-2-carboxylic acid, the curtius rearrangement of which is used to synthesize a number of 2-acylaminochromones and it is an orally active antiallergic agent.

Related product price