Basic information

Product Name: 4H,8H-Benzo[1,2-b:3,4-b']dipyran-4-one,3-(2,4-dihydroxyphenyl)-5-hydroxy-8,8-dimethyl-
Synonyms: Cyclo-2,3-dehydrokievitone;Parvisoflavone A
CAS NO:50277-01-5
Molecular Formula: C20H16 O6
Molecular Weight: 352.343
EINECS: N/A
Product Categories: N/A
Mol File: 50277-01-5.mol

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 4H,8H-Benzo[1,2-b:3,4-b']dipyran-4-one,3-(2,4-dihydroxyphenyl)-5-hydroxy-8,8-dimethyl-(CAS DataBase Reference)
NIST Chemistry Reference: 4H,8H-Benzo[1,2-b:3,4-b']dipyran-4-one,3-(2,4-dihydroxyphenyl)-5-hydroxy-8,8-dimethyl-(50277-01-5)
EPA Substance Registry System: 4H,8H-Benzo[1,2-b:3,4-b']dipyran-4-one,3-(2,4-dihydroxyphenyl)-5-hydroxy-8,8-dimethyl-(50277-01-5)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 50277-01-5(Hazardous Substances Data)

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50277-01-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50277-01-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,2,7 and 7 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 50277-01:
(7*5)+(6*0)+(5*2)+(4*7)+(3*7)+(2*0)+(1*1)=95
95 % 10 = 5
So 50277-01-5 is a valid CAS Registry Number.

50277-01-5SDS

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	Parvisoflavone A

1.2 Other means of identification

Product number	-
Other names	3-(2,4-dihydroxy-phenyl)-5-hydroxy-8,8-dimethyl-8H-pyrano[2,3-f]chromen-4-one

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:50277-01-5 SDS

50277-01-5Upstream product

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50277-01-5Relevant academic research and scientific papers

Synthesis of parvisoflavones A and B

Tsukayama,Kawamura,Tamaki,Horie

, p. 1704 - 1706 (2007/10/02)

Parvisoflavone B (2',4',5-trihydroxy-2'',2''-dimethylpyrano[5'',6''-g]isoflavone was synthesized by regioselective reduction of 7-[2,4-bis(benzyloxy)phenyl]-2,3-dihydro-5-methoxy-2,2-dimethyl-4H,6H- benzo[1,2-b:5,4-b']dipyrano-4,6-dione with sodium borohy

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