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154-23-4

Basic Information
CAS No.: 154-23-4
Name: Cianidanol
Article Data: 95
Molecular Structure:
Molecular Structure of 154-23-4 (Cianidanol)
Formula: C15H14O6
Molecular Weight: 290.273
Synonyms: 2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R-trans)-;(+)-(2R:3S)-5,7,3',4'-Tetrahydroxyflavan-3-ol;(+)-Catechin;(+)-Cianidanol;Catechinic acid;Catergen;Cyanidanol;D-(+)-Catechin;D-Catechol;NSC 2819;Teafuran 30A;
EINECS: 205-825-1
Density: 1.593 g/cm3
Melting Point: 175-177 °C (anhydrous)(lit.)
Boiling Point: 630.4 °C at 760 mmHg
Flash Point: 335 °C
Appearance: Tan solid
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
PSA: 110.38000
LogP: 1.54610
Synthetic route
20728-73-8

5,7,3',4'-tetra-O-benzyl-(+)-catechin

154-23-4

catechin

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol92%
With 10 wt% Pd(OH)2 on carbon In methanol; water at 20℃; for 10h;90%

C50H42O6

A

490-46-0

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol

B

154-23-4

catechin

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol; ethyl acetate at 20 - 55℃;A 55%
B n/a
455952-06-4

2-[(2S,3S)-3-(3'',4''-dihydroxyphenyl)-2,3-dihydroxypropyl]-1,3,5-benzenetriol

154-23-4

catechin

Conditions
ConditionsYield
With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at 20℃; for 1.5h; Mitsunobu reaction;50%
111-31-9

Hexanethiol

tannin

tannin

A

epicatechin-4-hexylsulphide

B

154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
111-88-6

Octanethiol

tannin

tannin

A

epicatechin-4-nonylsulphide

B

154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
143-10-2

decylthiol

tannin

tannin

A

epicatechin-4-decylsulphide

B

154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
112-55-0

1-dodecylthiol

tannin

tannin

A

(-)-epicatechin-4β-dodecylsulfide

B

154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
2917-26-2

16-mercaptohexadecanoate

tannin

tannin

A

epicatechin-4-hexadecylsulphide

B

154-23-4

catechin

Conditions
ConditionsYield
With acetic acid In ethanol at 105℃; for 18h;A 40%
B n/a
23567-23-9

procyanidin B3

154-23-4

catechin

Conditions
ConditionsYield
With sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 1h;35%
With hydrogenchloride for 0.5h; heating on a boiling water bath;
57526-59-7

(2R,3S,4S)-2,3-trans-3,4-trans-3,3',4',7-tetrahydroxy-4-<(2R,3S)-2,3-trans-3,3',4',5,7-pentahydroxyflavan-8-yl>flavan

A

C15H14(2)H2O5

B

154-23-4

catechin

Conditions
ConditionsYield
With deuterated sodium cyanoborohydride In trifluoroacetic acid at 0℃; for 2h;A 25%
B 26%
With deuterated sodium cyanoborohydride; trifluoroacetic acid at 0℃; for 6h;
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    Business Type:Lab/Research institutions

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  • Catechin

  • Casno:

    154-23-4

    Catechin

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    Address:No.10048, xiangjiang centry bulding ,kaifu district ,changsha city ,Hunan

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    154-23-4

    E-0102 Catechin

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  • Casno:

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    Cianidanol

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    Business Type:Lab/Research institutions

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  • Casno:

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    Cianidanol

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  • Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

  • Casno:

    154-23-4

    Green Tea Extract Catechins 60%~90% CAS NO.154-23-4

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  • 2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R,3S)-

  • Casno:

    154-23-4

    2H-1-Benzopyran-3,5,7-triol,2-(3,4-dihydroxyphenyl)-3,4-dihydro-, (2R,3S)-

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    154-23-4

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    Wuhan Vanz Pharm Inc. is a manufacturer&trading company.

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  • (+)-catechin

  • Casno:

    154-23-4

    (+)-catechin

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    Address:No.567 Dengcai Street,Sandun,Westlake District,Hangzhou310030,Zhejiang,China.

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  • (+)-catechin

  • Casno:

    154-23-4

    (+)-catechin

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    Tel:86-29-86107037-8015

    Address:No.11 Daqing Road,Lianhu District,Xi’an 710082,China

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Chemistry

MF: C15H14O6
MW: 290.27
EINECS: 205-825-1
Mp:175-177 °C  
Storage temp.: 2-8°C
Merck:1902
Appearance:Green needles.
Solubility in water:Slightly soluble
Product Categories: Pharmaceutical Intermediates;Biochemistry;Flavonoids;Natural Plant Extract

d-CATECHOL's Synonyms: (+)-CATECHIN;CATECHIN;CATECHIN, (+)-;D-CATECHIN;(+)-3,3'4',5,7-FLAVANEPENTOL;3,3',4',5,7-PENTAHYDROXYFLAVANE;[2R,3S]-2-[3,4-DIHYDROXYPHENYL]-3,4-DIHYDRO-1[2H]-BENZOPYRAN-3,4,7-TRIOL;2-(3,4-dihydroxyphenyl)-3,4-dihydro-(2r-trans)-2h-1-benzopyran-7-triol

Uses

Substance is used in dyeing and tanning

Toxicity Data With Reference

1.   

oms-hmn:lym 5 µmol/L

   CNREA8    Cancer Research. 45 (1985),2471.
2.   

sce-hmn:lym 5 µmol/L

   CNREA8    Cancer Research. 45 (1985),2471.
3.   

ipr-rat LD50:1084 mg/kg

   OYYAA2    Oyo Yakuri. Pharmacometrics. 24 (1982),361.
4.   

ipr-mus LD50:1 g/kg

   PLMEAA    Planta Medica. 42 (1981),75.

Safety Profile

Moderately toxic by intraperitoneal route. An experimental teratogen. Other experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits acrid smoke and fumes.

d-CATECHOL's Safety Information
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
RTECS  DJ3450000
F  8-10-23

Specification

【Storage】Keep away from heat and sources of ignition. Ground all equipment containing material. Keep container tightly closed in a cool, well-ventilated area.
【Stability】Stable at normal temperatures and pressures.