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Abscisic acid (ABA) is a 15-carbon acid, related in structure to a carotene molecule. The natural ABA is the cis-(+)-isomer. ABA, like ethylene, is made in response to environmental signals (water stress. ABA was originally discovered because of its role in the abscission of cotton fruits. Another major role of ABA is to induce bud and seed dormancy. A second, important role is the control of stomates in response to water stress.

(±)-cis,trans-ABSCISIC ACID (ABA) [5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid]

MW 264.32; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 14375-45-2; C15H20O4
	013 2701	25	mg
	013 2702	100	mg
	013 2703	250	mg
	013 2704	1	g

(+)-cis,trans-ABSCISIC ACID (S-ABA) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid]

MW 264.32; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 21293-29-8; C15H20O4
	013 2721	25	mg
	013 2722	100	mg
	013 2723	500	mg
	013 2724	1	g

Natural isomer of ABA

(+)-trans,trans-ABSCISIC ACID (S-ttABA) [(S)-5-[1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2E,4E)-pentadienoic acid]

MW 264.32; crystalline; purity > 95% (HPLC)
S:26, 36; CAS: 6755-41-5; C15H20O4
	013 2751	100	µg
	013 2752	500	µg
	013 2753	1	mg

(+)-trans,trans-ABSCISIC ACID METHYL ESTER (S-ttABAMe) [(S)-5-[1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2E,4E)-pentadienoic acid methyl ester]

MW 278.35; crystalline; purity > 95% (HPLC)
S:26, 36; CAS: NONE; C16H22O4
	013 6161	100	µg
	013 6162	500	µg
	013 6163	1	mg

(±)-cis,trans-ABSCISIC ACID METHYL ESTER (ABAMe) [5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid methyl ester]

MW 278.35; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 6901-96-8, C16H22O4
	013 2771	5	mg
	013 2772	10	mg
	013 2773	25	mg
	013 2774	100	mg

(+)-cis,trans-ABSCISIC ACID METHYL ESTER (ABAMe) [(S)-5-[1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid methyl ester]

MW 278.35; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: NONE; C16H22O4
	013 2761	5	mg
	013 2762	10	mg
	013 2763	50	mg

(±)-cis,trans-ABSCISIC ACID GLUCOSYL ESTER (ABAGlc) [(S)-5-[1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2E,4E)-pentadienoic acid-O-β-D-glucopyranosyl ester]

MW 426.47; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 79199-48-7; C21H30O9
	013 2781	1	mg
	013 2782	2	mg
	013 2783	5	mg

(±)-cis,trans-ABSCISIC ACID-β-D-GLUCOPYRANOSYL ESTER TETRAACETATE ABAGlcTAc) [5-[1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methyl-[2E,4E]-pentadienoic acid-O-β-D-glucopyranosyl ester tetraacetate]

MW 594.62; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 79199-47-6; C29H38O13
	013 5191	5	mg
	013 5192	10	mg
	013 5193	50	mg

(±)-cis,trans-ABSCISIC ACID-L-ALANINE (ABA-L-Ala) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-alanine]

MW 335.40; crystalline; purity > 95% (HPLC)
S:26, 36; CAS: 1285591-80-1; C18H25NO5
	013 7221	1	mg
	013 7222	2	mg
	013 7223	5	mg

(±)-cis,trans-ABSCISIC ACID-L-ASPARTIC ACID (ABA-L-Asp) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-aspartic acid]

MW 379.41; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285592-10-0; C19H25NO7
	013 7261	1	mg
	013 7262	2	mg
	013 7263	5	mg

(±)-cis,trans-ABSCISIC ACID-L-GLUTAMIC ACID (ABA-L-Glu) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-glutamic acid]

MW 393.44; crystalline; purity > 97% (HPLC)
S:26, 36; CAS: 1285592-12-2; C20H27NO5
	013 7191	1	mg
	013 7192	2	mg
	013 7193	5	mg

(±)-cis,trans-ABSCISIC ACID-L-GLYCINE (ABA-L-Gly) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-glycine]

MW 321.38; crystalline; purity > 92% (HPLC)
S:26, 36; CAS: 1285591-89-0; C17H23NO5
	013 7211	1	mg
	013 7212	2	mg
	013 7213	5	mg

(±)-cis,trans-ABSCISIC ACID-L-ISOLEUCINE (ABA-L-Ile) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-isoleucine]

MW 377.48; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-88-9; C21H31NO5
	013 7251	1	mg
	013 7252	2	mg
	013 7253	5	mg

(±)-cis,trans-ABSCISIC ACID-L-LEUCINE (ABA-L-Leu) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-leucine]]

MW 377.48; crystalline; purity > 92% (HPLC)
S:26, 36; CAS: 1285591-85-6; C21H31NO5
	013 7241	1	mg
	013 7242	2	mg
	013 7243	5	mg

(±)-cis,trans-ABSCISIC ACID-L-METHIONINE (ABA-L-Met) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-methionine]

MW 395.52; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-94-7; C20H29NO5S
	013 7201	1	mg
	013 7202	2	mg
	013 7203	5	mg

(±)-cis,trans-ABSCISIC ACID-L-PHENYLALANINE (ABA-L-Phe) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-phenylalanine]

MW 411.50; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-91-4; C24H29NO5
	013 7181	1	mg
	013 7182	2	mg
	013 7183	5	mg

(±)-cis,trans-ABSCISIC ACID-L-PROLINE (ABA-L-Pro) [(S)-1-((2Z,4E)-5-((S)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methylpenta-2,4-dienoyl)pyrrolidine-2-carboxylic acid]

MW 361.44; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-90-3; C20H27NO5
	013 7271	1	mg
	013 7272	2	mg
	013 7273	5	mg

(±)-cis,trans-ABSCISIC ACID-L-TRYPTOPHAN (ABA-L-Trp) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-tryptophan]

MW 450.54; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-94-7; C26H30N2O5
	013 7171	1	mg
	013 7172	2	mg
	013 7173	5	mg

(±)-cis,trans-ABSCISIC ACID-L-TYROSINE (ABA-L-Tyr) [(S)-2-((2Z,4E)-5-((S)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methylpenta-2,4-dienamido)-3-(4-hydroxyphenyl)propanoic acid]

MW 427.50; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285592-04-2; C24H29NO6
	013 7531	1	mg
	013 7532	2	mg
	013 7533	5	mg

(±)-cis,trans-ABSCISIC ACID-L-VALINE (ABA-L-Val) [(S)-5-(1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid-L-valine]

MW 363.46; crystalline; purity > 98% (HPLC)
S:26, 36; CAS: 1285591-82-3; C20H29NO5
	013 7231	1	mg
	013 7232	2	mg
	013 7233	5	mg