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L-Glutamine FCC

速览

L-Glutamine —— 致诚生物供货速览

致诚生物（Zhicheng Bio）从中国上海供应L-Glutamine（FCC），CAS 56-85-9，非现货，按单排产，每批次随货提供 COA，可另附规格书与 MSDS。按单备货——约1周到上海。询盘请发 zhicheng1@zhicheng-bio.cn，官网不挂价，报价按数量与交货条款单独出。

供应商: 致诚生物 Zhicheng Bio，上海
CAS 号: 56-85-9
分子式: C5H10N2O3
规格: FCC
现货状态: 按单排产
随货文件: 批次 COA；规格书、MSDS 可索取
包装: 25 kg 纸箱/袋，可按需调整
PubChem CID: 5961
报价方式: 邮件询盘（zhicheng1@zhicheng-bio.cn），官网不展示价格

氨基酸约1周

L-Glutamine

FCC

CAS 56-85-9 · C5H10N2O3

L-Glutamine 大宗原料，仅面向 B2B 生产采购——按您的目标规格供货，发货前先提供文件供质检审核。以下为指导价；发送询盘获取正式报价、起订量与交期。

¥53.5 – ¥59.9 /kg 按采购量 · 到上海交货指导价

价格为到上海交货指导区间，采购量越大越接近低端；原料行情每周波动，具体以询盘报价为准，通常 1 个工作日内回复。

类别: 氨基酸

供货状态: 按单备货——约1周到上海

包装: 25 kg 袋装、箱装或桶装（标准）

供应要点

按您的目标规格供货——适用时对标 USP / FCC / JP 药典
报价即附近期批次COA，下单前先过您的QA
可与其他SKU拼单，上海一票发运
发货前可按需安排第三方检测

每批随附文件

批次COA规格书MSDS / SDS出口文件

发货前可按需安排第三方检测；产地证、非转基因或过敏原声明可按目的地市场要求另行安排。

索取COA与报价使用询盘表单

运费与交期

估算本品运费

约1周按单备货——约1周到上海

目的地区域数量（kg）

空运快

运输时效: —
预估运费（USD）*: —
全程时间: —

海运拼箱省

运输时效: —
预估运费（USD）*: —
全程时间: —

索取精确报价

文件先行

每批附COA、规格书与MSDS——发货前即可交由您的QA审核。

现货储备

核心品类多吨位库存，现货SKU上海即刻发运。

认证供应链

货源来自经审核的认证工厂——ISO、HACCP、Halal与Kosher可提供。

灵活出口

25kg袋/箱/桶装；FOB/CIF/DDP按航线，海运空运均可拼货。

02标识与理化性质

标识与理化性质

本品的化合物标识与理化性质。以随报价出具的规格书与批次COA为准。

CAS 号	56-85-9
分子式	C5H10N2O3
分子量	146.14
EINECS	200-292-1 (PubChem also lists 230-006-0 and 105-459-1)
别名	L-Glutamine, L-Gln, Q, (2S)-2,5-diamino-5-oxopentanoic acid, levoglutamide
外观	White crystals or crystalline powder, odourless
溶解性	Water 41.3 g/L at 25 °C. Strongly temperature-dependent: one gram dissolves in 56.7 mL of water at 0 °C, 38.5 mL at 18 °C and 20.8 mL at 30 °C. Practically insoluble in methanol (3.5 mg/100 mL at 25 °C), ethanol (0.46 mg/100 mL at 23 °C), ether, benzene, acetone, ethyl acetate and chloroform.
药典收载情况	FCC (claimed grade — see note)

03规格参数

规格参数

下表为典型参数——以随报价发送的规格书与批次COA为准。

项目	规格	检测方法
pH (aqueous solution)	5-6 at 14.6 g/L, 25 °C	Potentiometric
Ammonium	—	Per monograph
Assay (as-is / dried basis)	—	Titration or HPLC per the applicable monograph
Appearance	—	Visual
Identification	—	IR / specific optical rotation per monograph
Specific optical rotation	—	Polarimetry
Loss on drying	—	Gravimetric
Residue on ignition / sulphated ash	—	Gravimetric
Chloride	—	Per monograph
Sulphate	—	Per monograph
Iron	—	Per monograph
Other amino acids / related substances	—	TLC or HPLC per monograph
Heavy metals (Pb / As / Cd / Hg)	—	ICP-MS or per monograph
Microbiology (TAMC / TYMC / E. coli / Salmonella)	—	USP <61>/<62> or equivalent

表中显示「—」的项目，表示我们没有可对外公布的固定限度：该项目在批次COA中如实报出，限度与您的质检共同确认。宁可留空，也不编一个数字。完整的理化、重金属与微生物指标见规格书——随每份报价提供。

04配方与处理要点

配方与处理要点

我们技术团队对采购本品的客户必讲的几件事——决定一批货在您工艺里能不能用起来的关键点。

Glutamine's solubility is the most temperature-sensitive of any amino acid on this list, and the numbers are worth memorising: 1 g needs 56.7 mL of water at 0 °C, 38.5 mL at 18 °C but only 20.8 mL at 30 °C. A concentrate that dissolves cleanly in a warm mixing tank can throw crystals when the pallet sits in a cold warehouse. Design your dissolution target at the coldest temperature the product will see, not at ambient.

It is practically insoluble in the usual organic solvents — 3.5 mg/100 mL in methanol, 0.46 mg/100 mL in ethanol — which rules out alcohol-based tincture and non-aqueous liquid formats entirely.

It melts with decomposition at about 185 °C, the lowest decomposition temperature of any amino acid on this list (compare leucine at 293 °C, tyrosine at 343 °C). Anything involving a hot die, a bar extruder or a spray-dry inlet needs to be checked against that ceiling rather than against a generic amino-acid assumption.

The amide side chain is the reactive part. An ammonium limit on the specification is more informative about how a batch has been stored and shipped than the assay is, because ammonia is what the amide releases when the material has been held wet or warm. Ask for it explicitly.

A 1.46% solution sits at pH 5-6, close enough to neutral that glutamine will not fight an existing beverage buffer — a real advantage over arginine base (alkaline) or citrulline malate (acidic) in a multi-ingredient pre-workout.

This is Zhicheng Bio's deepest single position at over 23 tonnes, which matters practically: glutamine is usually the highest-inclusion amino acid in a recovery formula, so it is the one where container-scale availability decides whether a launch is feasible.

05应用领域

应用领域

仅面向B2B生产用途——不作任何成品或功效宣称。

Recovery and post-workout powders

Free-form amino acid and EAA blends

Clinical and enteral nutrition

Capsules and tablets

Cell-culture media and biotech fermentation feeds

Gut-health and specialty nutrition formulations

06各市场法规状态

各市场法规状态

以资料允许的最保守口径陈述原料的法规状态。这是供应链信息，不构成法规意见——成品与目的地市场的合规判断请咨询您自己的法规顾问。

市场	状态	依据
United States	Listed by name in FDA's food-additive regulation for amino acids as 'L-Glutamine'. That regulation permits use as a nutrient 'to significantly improve the biological quality of the total protein' of a food, subject to a cap of 12.4 (as L-glutamic acid, including L-glutamine) percent by weight of the total protein of the finished food, and to the labelling requirements in paragraph (e). It is not a general-purpose clearance for any food use, and it is not the authority under which dietary supplements are marketed — those sit under DSHEA and 21 CFR part 111.	21 CFR 172.320(a), (b), (c)(4), (e)
United States (GRAS)	A search of FDA's GRAS Notice Inventory for 'glutamine' returned only an unrelated enzyme-preparation notice (GRN 1289, a protein-glutamine glutaminase). There is no GRAS notice for L-glutamine itself.	FDA GRAS Notice Inventory
European Union	Amino acids are not covered by the harmonised positive lists of Directive 2002/46/EC (Annexes I and II of that Directive cover vitamins and minerals only). Amino acid ingredients are therefore governed by general EU food law plus national rules, with mutual recognition under Article 4 of Regulation (EC) No 764/2008 in practice.	Directive 2002/46/EC (food supplements); national member-state rules
Japan	No JP XVIII Official Monograph for L-glutamine was located. L-Glutamine appears in JP XVIII only in the Reagents/Test Solutions section, referenced to JIS K 9103 (L(+)-glutamine, Special class) — a reagent standard, not a pharmacopoeial monograph.	JP XVIII, Reagents, Test Solutions and Standard Solutions
China	Status as a nutrient fortification substance / food additive under Chinese national standards to be confirmed.	GB 14880-2012 (nutrient fortification substances), GB 2760 (food additives), and NHC new-food-ingredient announcements

07相关研究文献

包装、储存与交期

标准包装	25kg袋装、箱装或桶装
定制包装	长期客户可安排定制包装与标签
储存条件	阴凉干燥处，原包装密封保存
交期	按单备货——约1周到上海
运输	上海海运/空运拼货 · FOB/CIF/DDP按航线

09采购问答

采购问答

01My glutamine concentrate crystallised in the warehouse. Why?

Almost certainly temperature. Glutamine needs 20.8 mL of water per gram at 30 °C but 38.5 mL at 18 °C and 56.7 mL at 0 °C. A solution made at tank temperature can be supersaturated at warehouse temperature. Set your maximum concentration from the coldest point in the distribution chain.

02Is 'FCC' on your offer sheet a real monograph grade?

It is the grade designation the manufacturer uses, and we will send you the specification sheet it refers to. One honest caveat worth knowing: FDA's amino-acid regulation, 21 CFR 172.320, cites Food Chemicals Codex pages for most amino acids but lists L-glutamine under a different reference standard. If your QA needs a named FCC edition and monograph, ask and we will get it confirmed in writing before you order.

03Can I put glutamine in an alcohol-based liquid?

No. It is practically insoluble in ethanol (0.46 mg/100 mL) and methanol (3.5 mg/100 mL). Glutamine is an aqueous-format and dry-blend ingredient only.

04What should be on the COA besides assay?

Ask for ammonium, loss on drying, and heavy metals as a minimum. Ammonium is the row that tells you whether the batch has been held wet or warm, which for glutamine is the failure mode that actually occurs in transit.

05L-Glutamine 的起订量（MOQ）是多少？

MOQ按询盘灵活确定。在询盘中告知目标数量——核心现货SKU通常小试单与多吨位大单都可承接。

06下单前能否获取 L-Glutamine 样品？

可以——样品可按需提供，用于评估与实验室验证。在询盘中说明即可，我们逐单确认安排。

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