(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE

Product Name
(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE
CAS No.
7559-81-1
Chemical Name
(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE
Synonyms
Nsc10216;Kojic Impurity 4;CHLOROKOJIC ACID;2-(chloromethyl)-5-hydroxypyran-4-one;2-(chloromethyl)-5-hydroxy-4h-pyran-4-on;(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE;4H-Pyran-4-one, 2-(chloromethyl)-5-hydroxy-
CBNumber
CB9742976
Molecular Formula
C6H5ClO3
Formula Weight
160.56
MOL File
7559-81-1.mol
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(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE Property

Melting point:
164-165°C
Boiling point:
321.9±42.0 °C(Predicted)
Density 
1.514±0.06 g/cm3(Predicted)
pka
7.80±0.10(Predicted)
EPA Substance Registry System
4H-Pyran-4-one, 2-(chloromethyl)-5-hydroxy- (7559-81-1)
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Safety

Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P405Store locked up.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
S217867
Product name
2-CHLOROMETHYL-5-HYDROXY-PYRAN-4-ONE
Purity
AldrichCPR
Packaging
50MG
Price
$29.8
Updated
2024/03/01
TRC
Product number
C350120
Product name
2-​(Chloromethyl)​-​5-​hydroxy-4H-​pyran-​4-​one
Packaging
100mg
Price
$85
Updated
2021/12/16
AK Scientific
Product number
1801AL
Product name
2-(Chloromethyl)-5-hydroxy-4H-pyran-4-one
Packaging
100mg
Price
$224
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0009254
Product name
(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE
Purity
95.00%
Packaging
500MG
Price
$242.55
Updated
2021/12/16
AK Scientific
Product number
1801AL
Product name
2-(Chloromethyl)-5-hydroxy-4H-pyran-4-one
Packaging
250mg
Price
$264
Updated
2021/12/16
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(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE Chemical Properties,Usage,Production

Uses

2-?(Chloromethyl)?-?5-?hydroxy-4H-?pyran-?4-?one is an intermediate in synthesizing Allo Maltol (A546700), the esters of 5-hydroxy-2-methyl-4H-pyran-4-one are used as novel tyrosinase inhibitors for skin-lightening cosmetic compositions.

(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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(2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE Suppliers

China 14 Germany 1 India 1 Ukraine 2 United Kingdom 1 United States 3 Global 22
Wuxi AppTec
Tel
022-59987777 13552403979
Email
jia_guoqiang@wuxiapptec.com
Country
China
ProdList
22346
Advantage
58
Aikon International Limited
Tel
025-66113011 18112977050
Fax
02557626880
Email
sales01@aikonchem.com
Country
China
ProdList
16028
Advantage
58
Nanjing Leizheng Medical Technology Co. Ltd.
Tel
025-58869118 18626091766
Email
cltang@aliyun.com
Country
China
ProdList
27
Advantage
58
Blocksynth Pharmaceutical Technology Co.,Ltd
Tel
0086-19817745290; +8619817745290
Email
bd@blocksynth.com
Country
China
ProdList
5658
Advantage
58
Labnetwork lnc.
Tel
+86-27-50766799 +8618062016861
Email
contact@labnetwork.com
Country
China
ProdList
19994
Advantage
58
Shanghai Kaiwei Chemical Technology Co., Ltd.
Tel
021-58461859 15821823057
Email
service@aiviche.com
Country
China
ProdList
49323
Advantage
58
Shanghai Haohong Pharmaceutical Co., Ltd.
Tel
4008210725 4008210725
Email
malulu@leyan.com
Country
China
ProdList
55023
Advantage
58
Hangzhou FuRun Pharmaceutical Technology Co., Ltd
Tel
19975279805
Email
1900830611@qq.com
Country
China
ProdList
952
Advantage
58
Bide Pharmatech Ltd.
Tel
400-1647117 15221909166
Email
product02@bidepharm.com
Country
China
ProdList
61720
Advantage
58
Shanghai Jieshikai Biotechnology Co. , Ltd.
Tel
021-57520305 15001810326
Email
guojianing@jskchem.com
Country
China
ProdList
49242
Advantage
58

7559-81-1, (2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONERelated Search:

SALOR-INT L308021-1EA (E)-1-Chlorobut-2-ene Vinyl ether (2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE 3-chloro-2-methoxypropene 2-Chloroethyl vinyl ether 4H-PYRAN-4-ONE 3-hydroxy-4H-pyran-4-one SALOR-INT L308048-1EA

  • CHLOROKOJIC ACID
  • 2-(chloromethyl)-5-hydroxy-4h-pyran-4-on
  • (2-CHLOROMETHYL)-5-HYDROXY-4H-PYRAN-4-ONE
  • 2-(chloromethyl)-5-hydroxypyran-4-one
  • 4H-Pyran-4-one, 2-(chloromethyl)-5-hydroxy-
  • Nsc10216
  • Kojic Impurity 4
  • 7559-81-1