支链淀粉,来自玉米

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COA

CAS编号: 9037-22-3
分子式: (C₆H₁₀O₅)n·xH₂O
EC号: 232-911-6
MDL号: MFCD00130510
PubChem编号: 439207
PubChem SID: 504758691

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货号 (SKU)	包装规格	是否现货
A120984-5g	5g	现货
A120984-25g	25g	现货
A120984-100g	100g	现货
A120984-500g	500g	现货
A120984-2.5kg	2.5kg	期货

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基本描述

别名	胶淀粉 \| 支链淀粉水合物 (不含直链淀粉, 来自糯玉米)
英文别名	(2R,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-6-[[(2R,3S,4R,5R,6R)-4,5-dihydroxy-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-2-yl]methoxy]-4,5-dihydroxy-2-(hydroxymethy
英文名称	Amylopectin from maize
应用	支链淀粉是一种以葡萄糖为基础的高度支链多糖，它与直链淀粉共同形成淀粉。支链淀粉的糖苷键为 α-葡聚糖链中的 α- 1,4 和分支点的α-1，6。玉米中的支链淀粉在结构上与其他植物中的支链淀粉不同，可用于淀粉发育的研究。
运输条件	常规运输
产品介绍	支链淀粉白色粉状，又称胶淀粉。支链淀粉是以优质糯玉米为原料生产的一种纯天然支链淀粉。与普通淀粉相比具有较高的膨胀性、粘滞性和透明度，其膨胀性是普通淀粉的２.７倍。普通淀粉溶液很不稳定，贮存时逐渐变成混浊，胶粘性降低，最后出现白色结晶沉淀。而支链淀粉很容易溶于水生成稳定的溶液，且具有很强的粘度，不易发生老化，淀粉液在贮存过程中，不发生沉淀。支链淀粉是一个具有树枝形分支结构的多糖。相对分子质量较大，一般由1000－300,000个左右葡萄糖单位组成，分子量约为100万，有些可达600万。D-吡喃葡萄糖单位通过α-1,4-苷键连接成一直链，此直链上又可通过α-1,6-苷键形成侧链，在侧链上又会出现另一个分支侧链。主链中每隔6－9个葡萄糖残基就有一个分支，每一个支链平均含有约15－18个葡萄糖残基，平均每24－30个葡萄糖残基中就有一个非还原尾基。因此支链淀粉的结构为高支化聚合物，十分复杂。支链淀粉是一种以葡萄糖为基础的高度支链多糖，它与直链淀粉共同形成淀粉。支链淀粉的糖苷键为 α-葡聚糖链中的 α- 1,4 和分支点的α-1，6。玉米中的支链淀粉在结构上与其他植物中的支链淀粉不同，可用于淀粉发育的研究。 α-1,4-glucan with α-1,6-cross-linking; one terminal group per 25 glucose units Amylopectin is a glucose-based, highly-branched polysaccharide which together with amylose makes starch. The glucosidic bonds of amylopectin are α-1,4 in the glucan chain and α-1,6 at the branch points. Amylopectin from maize differs in structure form amylopectin from other plant species and is used in the study of the development of starches.

名称和识别符

PubChem SID	504758691
EC号	232-911-6
IIUPAC Name	(2R,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-6-[[(2R,3S,4R,5R,6R)-4,5-dihydroxy-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-2-yl]methoxy]-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
INCHI	1S/C30H52O26/c31-1-6-11(35)13(37)19(43)28(50-6)55-24-9(4-34)52-27(21(45)16(24)40)48-5-10-25(56-29-20(44)14(38)12(36)7(2-32)51-29)17(41)22(46)30(53-10)54-23-8(3-33)49-26(47)18(42)15(23)39/h6-47H,1-5H2/t6-,7-,8-,9-,10-,11-,12-,13+,14+,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26+,27+,28-,29-,30-/m1/s1
InChi Key	WMGFVAGNIYUEEP-WUYNJSITSA-N
Smiles	C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)OCC3C(C(C(C(O3)OC4C(OC(C(C4O)O)O)CO)O)O)OC5C(C(C(C(O5)CO)O)O)O)CO)O)O)O)O
Isomeric SMILES	C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@H](O3)O[C@@H]4[C@H](O[C@@H]([C@@H]([C@H]4O)O)O)CO)O)O)O[C@@H]5[C@@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O)CO)O)O)O)O
Reaxy-Rn	34820447
Reaxys-RN link address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=34820447&ln=

化学和物理性质

敏感性	易吸潮
分子量	828.700 g/mol
XLogP3	-10.600
氢键供体数Hydrogen Bond Donor Count	17
氢键受体数Hydrogen Bond Acceptor Count	26
可旋转键计数Rotatable Bond Count	13
精确质量Exact Mass	828.275 Da
单同位素质量Monoisotopic Mass	828.275 Da
拓扑极表面积Topological Polar Surface Area	427.000 Å²
重原子数Heavy Atom Count	56
形式电荷Formal Charge	0
复杂度Complexity	1210.000
同位素原子数Isotope Atom Count	0
定义的原子立体中心计数Defined Atom Stereocenter Count	25
未定义的原子立体中心计数Undefined Atom Stereocenter Count	0
定义的键立体中心计数Defined Bond Stereocenter Count	0
未定义的键立体中心计数Undefined Bond Stereocenter Count	0
所有立体化学键的总数The total count of all stereochemical bonds	0
共价键合单元计数Covalently-Bonded Unit Count	1

安全和危险性（GHS）

WGK Germany	3
Merck Index	481
个人防护装备	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

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