In the process of the structural determination of new gibberellins (GAs), syntheses of precursors (mevalonate, ent-kaurene,..) as well as degradation products were carried out. Information obtained from these syntheses have been utilised in the preparation of isotope-labelled GAs or GA precursors which are now available in research of biosynthesis, metabolism, and mode of action of Gas. Preparation of isotopically-labelled GAs is based on chemical conversion of readily available GA standards.

[²H₂]GIBBERELLIN A₁

MW 350.41; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 120396-35-2; C19H222H2O6
	032 2491	50	µg
	032 2492	100	µg
	032 2493	250	µg

[²H₂]GIBBERELLIC ACID (GA₃)

MW 348.39; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 120396-36-3; C19H202H2O6
	032 2501	50	µg
	032 2502	100	µg
	032 2503	250	µg

[²H₂]GIBBERELLIN A₄

MW 334.41 crystalline; purity > 90% (HPLC)
S:26, 36; C19H222H2O5
	032 2531	50	µg
	032 2532	100	µg
	032 2533	250	µg

[²H₂]EPIGIBBERELLIN A₄

MW 334.41 crystalline; purity > 90% (HPLC)
S:26, 36; C19H222H2O5
	032 7401	50	µg
	032 7402	100	µg
	032 7403	250	µg

[²H₂]GIBBERELLIN A₄-16,17-DIOL

MW 368.40 crystalline; purity > 90% (HPLC)
S:26, 36; C19H242H2O7
	032 7431	50	µg
	032 7432	100	µg
	032 7433	250	µg

[²H₂]GIBBERELLIN A₅

MW 332.39; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 120396-32-9; C19H202H2O5
	032 2631	50	µg
	032 2632	100	µg
	032 2633	250	µg

[²H₂]GIBBERELLIN A₆

MW 348.39; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 120396-37-4; C19H202H2O6
	032 2641	50	µg
	032 2642	100	µg
	032 2643	250	µg

[²H₂]GIBBERELLIN A₇

MW 332.39; crystalline; purity > 90% (HPLC)
S:26, 36; C19H202H2O5
	032 2541	50	µg
	032 2542	100	µg
	032 2543	250	µg

[²H₂]GIBBERELLIN A₈

MW 366.41; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 120396-34-1; C19H222H2O7
	032 2651	50	µg
	032 2652	100	µg
	032 2653	250	µg

[²H₂]GIBBERELLIN A₉

MW 318.41; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 132970-89-9; C19H222H2O4
	032 2661	50	µg
	032 2662	100	µg
	032 2663	250	µg

[²H₂]GIBBERELLIN A₉-16,17-DIOL

MW 352.40; crystalline; purity > 90% (HPLC)
S:26, 36; C19H242H2O6
	032 7441	50	µg
	032 7442	100	µg
	032 7443	250	µg

[²H₂]GIBBERELLIN A₁₂

MW 334.45; crystalline; purity > 90% (HPLC)
S:26, 36; C20H262H2O4
	032 2671	50	µg
	032 2672	100	µg
	032 2673	250	µg

[²H₂]GIBBERELLIN A₁₂ ALDEHYDE

MW 318.45; crystalline; purity > 90% (HPLC)
S:26, 36; C20H262H2O3
	032 2681	50	µg
	032 2682	100	µg
	032 2683	250	µg

[²H₂]GIBBERELLIN A₁₄

MW 350.45; crystalline; purity > 90% (HPLC)
S:26, 36; C20H262H2O5
	032 2451	50	µg
	032 2452	100	µg
	032 2453	250	µg

[²H₂]GIBBERELLIN A₁₅

MW 332.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O4
	032 2441	50	µg
	032 2442	100	µg
	032 2443	250	µg

[²H₂]GIBBERELLIN A₁₇

MW 380.41; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O7
	032 7411	50	µg
	032 7412	100	µg
	032 7413	250	µg

[²H₂]GIBBERELLIN A­₁₉

MW 364.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O6
	032 2691	50	µg
	032 2692	100	µg
	032 2693	250	µg

[²H₂]GIBBERELLIN A₂₀

MW 334.41; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 203125-99-9; C19H222H2O5
	032 2481	50	µg
	032 2482	100	µg
	032 2483	250	µg

[²H₂]GIBBERELLIN A₂₀-16,17-DIOL

MW 368.40; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 203125-99-9; C19H242H2O7
	032 7501	50	µg
	032 7502	100	µg
	032 7503	250	µg

[²H₂]GIBBERELLIN A₂₃

MW 380.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O7
	032 2431	50	µg
	032 2432	100	µg
	032 2433	250	µg

[²H₂]GIBBERELLIN A₂₄

MW 348.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O5
	032 2421	50	µg
	032 2422	100	µg
	032 2423	250	µg

[²H₂]GIBBERELLIN A₂₄, 9,11-DEHYDRO

MW 346.40; crystalline; purity > 90% (HPLC)
S:26, 36; C20H222H2O5
	032 7481	50	µg
	032 7482	100	µg
	032 7483	250	µg

[²H₂]GIBBERELLIN A₂₅

MW 364.41; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O6
	032 7421	50	µg
	032 7422	100	µg
	032 7423	250	µg

[²H₂]GIBBERELLIN A₂₉

MW 350.38; crystalline; purity > 90% (HPLC)
S:26, 36; C19H222H2O6
	032 2471	50	µg
	032 2472	100	µg
	032 2473	250	µg

[²H₂]GIBBERELLIN A₂₉ CATABOLITE

MW 348.37; crystalline; purity > 90% (HPLC)
S:26, 36; C19H202H2O6
	032 7491	50	µg
	032 7492	100	µg
	032 7493	250	µg

[²H₂]GIBBERELLIN A₃₄

MW 350.41; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 176449-76-6; C19H222H2O6
	032 2401	50	µg
	032 2402	100	µg
	032 2403	250	µg

[²H₂]GIBBERELLIN A₃₆

MW 364.44; crystalline; purity > 90% (HPLC)
		<td class="TdMinHeight" colspan="" 3"="" style="line-height: 13px; vertical-align: top; height: 18px;">S:26, 36; C20H242H2O6
	032 2391	50	µg
	032 2392	100	µg
	032 2393	250	µg

[²H₂]GIBBERELLIN A₃₇

MW 348.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O5
	032 2381	50	µg
	032 2382	100	µg
	032 2383	250	µg

[²H₂]GIBBERELLIN A₃₈

MW 348.39; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O6
	032 2371	50	µg
	032 2372	100	µg
	032 2373	250	µg

[²H₂]GIBBERELLIN A₄₄

MW 348.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H242H2O5
	032 2361	50	µg
	032 2362	100	µg
	032 2363	250	µg

[²H₂]GIBBERELLIN A₅₁

MW 334.41; crystalline; purity > 90% (HPLC)
S:26, 36; C19H222H2O5
	032 2351	50	µg
	032 2352	100	µg
	032 2353	250	µg

[²H₂]GIBBERELLIN A₅₁-16,17-DIOL

MW 368.40; crystalline; purity > 90% (HPLC)
S:26, 36; C19H242H2O7
	032 7451	50	µg
	032 7452	100	µg
	032 7453	250	µg

[²H₂]GIBBERELLIN A₅₃

MW 350.45; crystalline; purity > 90% (HPLC)
S:26, 36; CAS: 177781-16-7; C20H262H2O5
	032 2341	50	µg
	032 2342	100	µg
	032 2343	250	µg

[²H₂]GIBBERELLIN A₅₃-16,17-DIOL

MW 384.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H282H2O7
	032 7461	50	µg
	032 7462	100	µg
	032 7463	250	µg

[²H₂]GIBBERELLIN A₈₁

MW 350.41; crystalline; purity > 90% (HPLC)
S:26, 36; C19H222H2O6
	032 2331	50	µg
	032 2332	100	µg
	032 2333	250	µg

[²H₂]ent-KAURENE

MW 274.46; crystalline; purity > 90% (HPLC)
S:26, 36; C20H302H2
	032 5701	50	µg
	032 5702	100	µg
	032 5703	250	µg

[²H₂]ent-KAURENOL

MW 290.46; crystalline; purity > 90% (HPLC)
S:26, 36; C20H302H2O
	032 5711	50	µg
	032 5712	100	µg
	032 5713	250	µg

[²H₂]ent-KAURENAL

MW 288.45; crystalline; purity > 90% (HPLC)
S:26, 36; C19H262H2O
	032 5721	50	µg
	032 5722	100	µg
	032 5723	250	µg

[²H₂]ent-KAURENOIC ACID

MW 304.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H282H2O2
	032 6241	50	µg
	032 6242	100	µg
	032 6243	250	µg

[²H₂]STEVIOL

MW 320.44; crystalline; purity > 90% (HPLC)
S:26, 36; C20H282H2O3
	032 7471	50	µg
	032 7472	100	µg
	032 7473	250	µg