CAS No.: 490-46-0 — EC;Epicatechin (表儿茶素)

1. Primary Information

English name:	EC;Epicatechin
CAS No.:	490-46-0
Molecular formula:	C₁₅H₁₄O₆
Molecular weight:	290.27 g/mol
SMILES:	C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)O
Structural class:
Other identifiers:	(+)-Catechin (+)-Cyanidanol (+)-Cyanidanol-3 (-)-Epicatechin (2R,3R)-2-(3,4-Dihydroxyphenyl)-3,5,7-chromanetriol

2. Suppliers & Pricing

Supplier	Pack size	Purity	Price (CNY)	Purchase	Storage conditions	Lead time	Notes
Kehua Intelligence	20mg	HPLC≥98%	50	Buy now	2-8℃	in stock	-
Kehua Intelligence	500mg	HPLC≥98%	1664	Buy now	2-8℃	in stock	-
Kehua Intelligence	50mg	96%(HPLC)	240	Buy now	2-8℃	in stock	-
Kehua Intelligence	250mg	96%(HPLC)	694	Buy now	2-8℃	in stock	-
Kehua Intelligence	1g	96%(HPLC)	1270	Buy now	2-8℃	in stock	-
Kehua Intelligence	5g	96%(HPLC)	2240	Buy now	2-8℃	in stock	-
Kehua Intelligence	25g	96%(HPLC)	6000	Buy now	2-8℃	in stock	-

3. Structures

3.1 2D structure

3.2 3D structure

-1 -2 -3 35 37 0 1 0 0 0 0 0999 V2000 0.4554 0.7571 -0.1114 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.0198 -1.3181 1.8283 O 0 0 0 0 0 0 0 0 0 0 0 0 4.3334 -2.1453 -0.0043 O 0 0 0 0 0 0 0 0 0 0 0 0 4.8215 2.5776 -0.3171 O 0 0 0 0 0 0 0 0 0 0 0 0 -5.1189 -0.8225 -1.5254 O 0 0 0 0 0 0 0 0 0 0 0 0 -5.8048 0.9634 0.4911 O 0 0 0 0 0 0 0 0 0 0 0 0 0.0528 -1.6121 0.4327 C 0 0 1 0 0 0 0 0 0 0 0 0 -0.3707 -0.3857 -0.3865 C 0 0 1 0 0 0 0 0 0 0 0 0 1.4880 -1.9916 0.0735 C 0 0 0 0 0 0 0 0 0 0 0 0 2.3596 -0.7696 -0.0367 C 0 0 0 0 0 0 0 0 0 0 0 0 1.8044 0.5129 -0.1299 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.8267 -0.0272 -0.1539 C 0 0 0 0 0 0 0 0 0 0 0 0 3.7534 -0.9121 -0.0674 C 0 0 0 0 0 0 0 0 0 0 0 0 2.6318 1.6361 -0.2107 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.8188 -0.5931 -0.9529 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.1694 0.8683 0.8581 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5779 0.2096 -0.1623 C 0 0 0 0 0 0 0 0 0 0 0 0 4.0172 1.4831 -0.2297 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.1571 -0.2628 -0.7396 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.5076 1.1987 1.0713 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5014 0.6331 0.2726 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.6030 -2.4707 0.2456 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.2554 -0.6034 -1.4586 H 0 0 0 0 0 0 0 0 0 0 0 0 1.5007 -2.5079 -0.8940 H 0 0 0 0 0 0 0 0 0 0 0 0 1.8879 -2.6664 0.8395 H 0 0 0 0 0 0 0 0 0 0 0 0 2.1897 2.6282 -0.2657 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.5491 -1.2932 -1.7399 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.9590 -1.2961 2.0778 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.4138 1.3149 1.4984 H 0 0 0 0 0 0 0 0 0 0 0 0 5.6594 0.0989 -0.1825 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.7622 1.8965 1.8646 H 0 0 0 0 0 0 0 0 0 0 0 0 5.3002 -2.0460 -0.0383 H 0 0 0 0 0 0 0 0 0 0 0 0 4.2661 3.3752 -0.3553 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.6962 -1.4158 -2.1700 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.8521 1.5945 1.2297 H 0 0 0 0 0 0 0 0 0 0 0 0 1 8 1 0 0 0 0 1 11 1 0 0 0 0 2 7 1 0 0 0 0 2 28 1 0 0 0 0 3 13 1 0 0 0 0 3 32 1 0 0 0 0 4 18 1 0 0 0 0 4 33 1 0 0 0 0 5 19 1 0 0 0 0 5 34 1 0 0 0 0 6 21 1 0 0 0 0 6 35 1 0 0 0 0 7 8 1 0 0 0 0 7 9 1 0 0 0 0 7 22 1 0 0 0 0 8 12 1 0 0 0 0 8 23 1 0 0 0 0 9 10 1 0 0 0 0 9 24 1 0 0 0 0 9 25 1 0 0 0 0 10 11 1 0 0 0 0 10 13 2 0 0 0 0 11 14 2 0 0 0 0 12 15 2 0 0 0 0 12 16 1 0 0 0 0 13 17 1 0 0 0 0 14 18 1 0 0 0 0 14 26 1 0 0 0 0 15 19 1 0 0 0 0 15 27 1 0 0 0 0 16 20 2 0 0 0 0 16 29 1 0 0 0 0 17 18 2 0 0 0 0 17 30 1 0 0 0 0 19 21 2 0 0 0 0 20 21 1 0 0 0 0 20 31 1 0 0 0 0

4. International Nomenclature & Identifiers

4.1 IUPAC Name

(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol

4.2 InChI

InChI=1S/C15H14O6/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7/h1-5,13,15-20H,6H2/t13-,15-/m1/s1

4.3 InChIKey

PFTAWBLQPZVEMU-UKRRQHHQSA-N

4.4 Canonical SMILES

C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)O

4.5 Isomeric SMILES

C1[C@H]([C@H](OC2=CC(=CC(=C21)O)O)C3=CC(=C(C=C3)O)O)O

4.6 SDF file

                  0  0  0     0  0            999 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 21 23 0 0 1
M  V30 BEGIN ATOM
M  V30 1 C 1.73205 -3 0 0
M  V30 2 C 0.866025 -2.5 0 0
M  V30 3 C 0.866025 -1.5 0 0
M  V30 4 O 1.73205 -1 0 0
M  V30 5 C 2.59808 -1.5 0 0
M  V30 6 C 3.4641 -1 0 0
M  V30 7 C 4.33013 -1.5 0 0
M  V30 8 C 4.33013 -2.5 0 0
M  V30 9 C 3.4641 -3 0 0
M  V30 10 C 2.59808 -2.5 0 0
M  V30 11 O 3.4641 -4 0 0
M  V30 12 O 5.19615 -1 0 0
M  V30 13 C 5.69986e-16 -1 0 0
M  V30 14 C -0.866025 -1.5 0 0
M  V30 15 C -1.73205 -1 0 0
M  V30 16 C -1.73205 -1.16573e-15 0 0
M  V30 17 C -0.866025 0.5 0 0
M  V30 18 C 0 0 0 0
M  V30 19 O -2.59808 0.5 0 0
M  V30 20 O -2.59808 -1.5 0 0
M  V30 21 O 5.99734e-16 -3 0 0
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 1 1 10
M  V30 2 1 1 2
M  V30 3 1 2 3
M  V30 4 1 2 21
M  V30 5 1 3 4
M  V30 6 1 3 13
M  V30 7 1 4 5
M  V30 8 1 5 10
M  V30 9 2 5 6
M  V30 10 1 6 7
M  V30 11 2 7 8
M  V30 12 1 7 12
M  V30 13 1 8 9
M  V30 14 2 9 10
M  V30 15 1 9 11
M  V30 16 1 13 18
M  V30 17 2 13 14
M  V30 18 1 14 15
M  V30 19 2 15 16
M  V30 20 1 15 20
M  V30 21 1 16 17
M  V30 22 1 16 19
M  V30 23 2 17 18
M  V30 END BOND
M  V30 END CTAB
M  END

1. Primary Information

2. Suppliers & Pricing

3. Structures

3.1 2D structure

3.2 3D structure

4. International Nomenclature & Identifiers

4.1 IUPAC Name

4.2 InChI

4.3 InChIKey

4.4 Canonical SMILES

4.5 Isomeric SMILES

4.6 SDF file

5. Spectroscopic data

5.1 ¹³C nuclear magnetic resonance (¹³C NMR)

5.2 ¹H nuclear magnetic resonance (¹H NMR)

5.3 Mass spectrometry (MS)

5.4 Infrared spectroscopy (IR)

5.5 Ultraviolet/visible spectroscopy (UV/Vis)

1. Primary Information

2. Suppliers & Pricing

3. Structures

3.1 2D structure

3.2 3D structure

4. International Nomenclature & Identifiers

4.1 IUPAC Name

4.2 InChI

4.3 InChIKey

4.4 Canonical SMILES

4.5 Isomeric SMILES

4.6 SDF file

5. Spectroscopic data

5.1 13C nuclear magnetic resonance (13C NMR)

5.2 1H nuclear magnetic resonance (1H NMR)

5.3 Mass spectrometry (MS)

5.4 Infrared spectroscopy (IR)

5.5 Ultraviolet/visible spectroscopy (UV/Vis)

5.1 ¹³C nuclear magnetic resonance (¹³C NMR)

5.2 ¹H nuclear magnetic resonance (¹H NMR)