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Tert-butyl 4-hydroxy-2-nitrophenylcarbamate, commonly known as butylated hydroxyanisole (BHA), is a synthetic antioxidant that is widely used in the food, cosmetics, and pharmaceutical industries to prevent spoilage and oxidation. It is a white or yellowish waxy solid with a faint characteristic odor and is soluble in methanol and ethanol. BHA functions by inhibiting the oxidation of fats and oils, thereby extending the shelf life of products. Despite being generally recognized as safe for consumption in small amounts, there has been some controversy and concern about its potential health effects, particularly its possible carcinogenic properties. Consequently, its usage in food products is regulated in some countries, and alternative natural antioxidants are being explored.

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  • 201811-20-3 Structure
  • Basic information

    1. Product Name: tert-butyl 4-hydroxy-2-nitrophenylcarbaMate
    2. Synonyms: tert-butyl 4-hydroxy-2-nitrophenylcarbaMate
    3. CAS NO:201811-20-3
    4. Molecular Formula: C11H14N2O5
    5. Molecular Weight: 254.23926
    6. EINECS: -0
    7. Product Categories: N/A
    8. Mol File: 201811-20-3.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: Inert atmosphere,Room Temperature
    8. Solubility: N/A
    9. CAS DataBase Reference: tert-butyl 4-hydroxy-2-nitrophenylcarbaMate(CAS DataBase Reference)
    10. NIST Chemistry Reference: tert-butyl 4-hydroxy-2-nitrophenylcarbaMate(201811-20-3)
    11. EPA Substance Registry System: tert-butyl 4-hydroxy-2-nitrophenylcarbaMate(201811-20-3)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 201811-20-3(Hazardous Substances Data)

201811-20-3 Usage

Uses

Used in Food Industry:
BHA is used as a preservative in the food industry to prevent the oxidation of fats and oils, thereby extending the shelf life of products. It helps maintain the freshness and quality of food items, such as snacks, cereals, and cooking oils.
Used in Cosmetics Industry:
In the cosmetics industry, BHA is used as an antioxidant to prevent the oxidation of ingredients, ensuring the stability and longevity of cosmetic products. It helps protect the products from spoilage and degradation, maintaining their efficacy and quality.
Used in Pharmaceutical Industry:
BHA is utilized in the pharmaceutical industry as an antioxidant to protect medications from oxidation, ensuring their stability and potency. It helps maintain the quality and effectiveness of pharmaceutical products, contributing to their safety and efficacy.
Due to concerns about the potential health effects of BHA, its usage in food products is regulated in some countries, and there is an ongoing search for alternative natural antioxidants to replace it.

Check Digit Verification of cas no

The CAS Registry Mumber 201811-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,1 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 201811-20:
(8*2)+(7*0)+(6*1)+(5*8)+(4*1)+(3*1)+(2*2)+(1*0)=73
73 % 10 = 3
So 201811-20-3 is a valid CAS Registry Number.

201811-20-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name tert-butyl 4-hydroxy-2-nitrophenylcarbamate

1.2 Other means of identification

Product number -
Other names tert-butyl 4-hydroxy-2-nitrophenylcarbamate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:201811-20-3 SDS

201811-20-3Downstream Products

201811-20-3Relevant articles and documents

FGFR INHIBITORS FOR THE TREATMENT OF CANCER

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Paragraph 00173; 00174, (2020/08/28)

The disclosure provides novel FGFR inhibitors based on the pyridinylpyrimidine. The disclosure includes inhibitors with broad inhibitory activity against all FGFR isoforms, and inhibitors with selective inhibition against FGFR4. These novel pyridinylpyrimidine-based FGFR inhibitors, or their derivatives, have strong potential to be used to treat cancer.

Design, synthesis and SAR of novel ethylenediamine and phenylenediamine derivatives as factor Xa inhibitors

Yoshikawa, Kenji,Yoshino, Toshiharu,Yokomizo, Yoshihiro,Uoto, Kouichi,Naito, Hiroyuki,Kawakami, Katsuhiro,Mochizuki, Akiyoshi,Nagata, Tsutomu,Suzuki, Makoto,Kanno, Hideyuki,Takemura, Makoto,Ohta, Toshiharu

, p. 2133 - 2140 (2011/04/24)

We previously reported on a series of cyclohexanediamine derivatives as highly potent factor Xa inhibitors. Herein, we describe the modification of the spacer moiety to discover an alternative scaffold. Ethylenediamine derivatives possessing a substituent at the C1 position in S configuration and phenylenediamine derivatives possessing a substituent at the C5 position demonstrated moderate to strong anti-fXa activity. Further SAR studies led to the identification of compound 30h which showed both good in vitro activity (fXa IC50 = 2.2 nM, PTCT2 = 3.9 μM) and in vivo antithrombotic efficacy.

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