Useful pH Ranges of Selected Biological Buffers (25 °C, 0.1M)

Buffers	Useful pH Range	pKa(at 20°C)	pKa(at 25°C)	pKa(at 37°C)
BES	6.4–7.8	7.17	7.09	6.9
TEA	7.3–8.3	n/a	7.8	n/a
CHES	8.6–10.0	9.55	9.49	9.36
MOPS	6.5–7.9	7.28	7.2	7.02
CAPS	9.7–11.1	10.56	10.4	10.02
AMPD	7.8–9.7	n/a	8.8	n/a
AMP	9.0–10.5	n/a	9.7	n/a
Bicine	7.6–9.0	8.35	8.26	8.04
EPPS	7.3–8.7	n/a	8	n/a
ADA	6.0–7.2	6.65	6.59	6.46
TAPS	7.7-9.1	8.49	8.4	8.18
MES	5.5–6.7	6.16	6.1	5.97
Gly-Gly	7.5–8.9	n/a	8.2	n/a
PIPES	6.1–7.5	6.8	6.76	6.66
Tricine	7.4–8.8	8.16	8.05	7.8
Bis-Tris Propane	6.3–9.5	n/a	6.8, 9.0	n/a
MOPSO	6.2–7.6	n/a	6.9	6.75
AMPSO	8.3–9.7	n/a	9	9.1
DIPSO	7.0–8.2	n/a	7.6	7.35
TAPSO	7.0–8.2	n/a	7.6	7.39
Bis-Tris	5.8–7.2	n/a	6.5	6.36
CAPSO	8.9–10.3	n/a	9.6	9.43
TES	6.8–8.2	7.5	7.4	7.16
HEPES	6.8–8.2	7.55	7.48	7.31
aces	6.1–7.5	6.88	6.78	6.54
Trizma	7.0–9.0	8.2	8.06	7.72

产品编号	项目名称规格	分子式	加入购物车
B802277	N,N-(2-羟乙基)-2-氨基乙磺酸(BES), ≥99%(T) BES, ≥99%(T)	C₆H₁₅NO₅S	点击收藏价格库存

B802278	N,N-(2-羟乙基)-2-氨基乙磺酸(BES), ≥99.5%(T) BES, ≥99.5%(T)	C₆H₁₅NO₅S	点击收藏价格库存

T819270	三乙醇胺, Standard for GC, ≥99.5% (GC) Triethanolamine, Standard for GC, ≥99.5% (GC)	C₆H₁₅NO₃	点击收藏价格库存

T819271	三乙醇胺, 试剂级, 98% Triethanolamine, 试剂级, 98%	C₆H₁₅NO₃	点击收藏价格库存

T819273	三乙醇胺, for HPLC,>99.0%(GC) Triethanolamine, for HPLC,>99.0%(GC)	C₆H₁₅NO₃	点击收藏价格库存

T819274	三乙醇胺, ≥99.0%(GC) Triethanolamine, ≥99.0%(GC)	C₆H₁₅NO₃	点击收藏价格库存

C805238	2-环己胺基乙磺酸, 99.5%(T) N-Cyclohexyltaurine (CHES), 99.5%(T)	C₈H₁₇NO₃S	点击收藏价格库存

M813154	3-(N-吗啡啉)丙磺酸, ≥99.0%(T) MOPS, ≥99.0%(T)	C₇H₁₅NO₄S	点击收藏价格库存

M813155	3-(N-吗啡啉)丙磺酸, ≥99.5% (T) MOPS, ≥99.5% (T)	C₇H₁₅NO₄S	点击收藏价格库存

C804657	3-(环己胺)-1-丙磺酸, 超纯级 CAPS, 超纯级	C₉H₁₉NO₃S	点击收藏价格库存

A800466	2-氨基-2-甲基-1,3-丙二醇, 99% 2-Amino-2-methyl-1,3-propanediol(AMPD), 99%	C₄H₁₁NO₂	点击收藏价格库存

A800065	2-氨基-2-甲基-1-丙醇, 超纯级,99.0% 2-Amino-2-methyl-1-propanol (AMP), 超纯级,99.0%	C₄H₁₁NO	点击收藏价格库存

A800066	2-氨基-2-甲基-1-丙醇, 95% 2-Amino-2-methyl-1-propanol (AMP), 95%	C₄H₁₁NO	点击收藏价格库存

A821799	AMP缓冲液, 生物技术级 AMP buffer, 生物技术级	C₄H₁₁NO	点击收藏价格库存

N802774	N,N-双(2-羟乙基)甘氨酸, 超纯级 N,N-Bis(2-hydroxyethyl)glycine (Bicine), 超纯级	C₆H₁₃NO₄	点击收藏价格库存

H811192	4-(2-羟乙基)-1-哌嗪丙磺酸, ≥99.0%(T) HEPPS, ≥99.0%(T)	C₉H₂₀N₂O₄S	点击收藏价格库存

H811193	4-(2-羟乙基)-1-哌嗪丙磺酸, ≥99.5%(T) HEPPS, ≥99.5%(T)	C₉H₂₀N₂O₄S	点击收藏价格库存

N800705	乙酰氨基亚胺乙酸, 98% ADA, 98%	C₆H₁₀N₂O₅	点击收藏价格库存

N800706	乙酰氨基亚胺乙酸, 超纯级 ADA, 超纯级	C₆H₁₀N₂O₅	点击收藏价格库存

T819342	N-三(羟甲基)甲基-3-氨基丙磺酸, 99% 3-[N-Tris-(hydroxymethyl)methylamino]propanesulphonic (TAPS), 99%	C₇H₁₇NO₆S	点击收藏价格库存

精细化学

分析色谱

材料科学

生命科学

Useful pH Ranges of Selected Biological Buffers (25 °C, 0.1M)