ZHICHENG BIO
肉碱系列约1周
L-Carnitine HCl
¥225 – ¥252 /kg按采购量
01产品详情
L-Carnitine Tartrate 68% L-Carnitine / 32% L-Tartaric Acid
速览
L-Carnitine Tartrate —— 致诚生物供货速览
致诚生物（Zhicheng Bio）从中国上海供应L-Carnitine Tartrate（68% L-Carnitine / 32% L-Tartaric Acid），CAS 36687-82-8，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
- 36687-82-8
- 分子式
- C18H36N2O12
- 规格
- 68% L-Carnitine / 32% L-Tartaric Acid
- 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
- 57349413
- 报价方式
- 邮件询盘（zhicheng1@zhicheng-bio.cn），官网不展示价格
肉碱系列
约1周
L-Carnitine Tartrate
68% L-Carnitine / 32% L-Tartaric Acid
CAS 36687-82-8 · C18H36N2O12
L-Carnitine Tartrate 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。
¥160 – ¥179.2 /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。
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。
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 | 36687-82-8 |
|---|---|
| 分子式 | C18H36N2O12 (L-carnitine : L-tartaric acid, 2:1) |
| 分子量 | 472.5 |
| EINECS | 459-550-9 or 609-282-5 |
| 别名 | Levocarnitine tartrate, L-Carnitine L-tartrate, LCLT, carnitine tartrate 2:1 |
| 外观 | White crystalline powder |
| 溶解性 | Freely soluble in water |
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 |
|---|---|---|
| L-Carnitine content | 68% (nominal, per the product's stated composition) | Calculated / per specification |
| L-Tartaric acid content | 32% (nominal, per the product's stated composition) | Calculated / per specification |
| 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。
01
This is the salt the industry uses specifically to get carnitine into a dry powder. Carnitine free base is strongly hygroscopic; the 2:1 tartrate is the form treated as non-hygroscopic and free-flowing, which is why flavoured powders and stick packs almost always specify tartrate rather than base.
02
It is not indifferent to humidity, though. Patent literature on non-hygroscopic carnitine salts describes L-carnitine L-tartrate as becoming deliquescent at relative humidity slightly above 60%. Treat 60% RH as the practical ceiling for open handling, blending rooms and stick-pack filling.
03
Potency is 68% carnitine and 32% L-tartaric acid, and the 68% is stoichiometrically real, not a marketing round number: two carnitine molecules (2 x 161.20) in a 472.5 g/mol salt is 68.2%.
04
The tartrate counter-ion contributes acidity and a mild tart note, which is why it disappears cleanly into citrus and berry flavour systems and fights with dairy or vanilla ones.
05
For a 1000 mg carnitine claim you need about 1470 mg of tartrate — a meaningful difference in a capsule shell or a 5 g scoop budget, and the single most common source of label error when a formula is moved between carnitine salts.
06
12+ tonnes of this SKU sit in stock, so it is the carnitine form to standardise on if you are scaling a powder line rather than a capsule.
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。
Pre-workout and fat-metabolism powder blends
Flavoured stick packs and instant drink powders
Tablets and capsules where powder flow matters
Functional food and bar inclusions
Sports gels and chews
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 | GRAS Notice GRN 993 (notifier Ausnutria B.V.) for L-carnitine-L-tartrate closed with an 'FDA has no questions' letter on 18 October 2021 — but the notified use was narrow: 'ingredient in cow or goat milk-based, non-exempt infant formula for term infants at a maximum level of 0.88 mg/100 kcal'. Two earlier notices (GRN 935, GRN 362) were withdrawn at the notifier's request. GRN 993 does not authorise general food use and does not cover dietary supplements. | FDA GRAS Notice Inventory, GRN 993 (and GRN 935, GRN 362) |
| 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 |
| 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 |
| Japan | No JP XVIII Official Monograph for this substance was located. | JP XVIII |
07相关研究文献
相关研究文献
本化合物的同行评议文献，标识号均可点击直达原文——不必只听我们说。
以下文献仅用于提供科学背景。它们描述的是针对该化合物已发表的研究，既不是对本原料的宣称，也不是对任何成品的宣称。致诚生物不作任何医疗、健康或功效宣称。
- In a balanced crossover study in ten resistance-trained men, three weeks of L-carnitine L-tartrate (2 g L-carnitine/day) attenuated exercise-induced increases in plasma markers of purine catabolism and circulating cytosolic proteins after a squat protocol, and MRI-assessed muscle disruption was 41-45% of the placebo area. Volek JS, Kraemer WJ, Rubin MR, Gómez AL, Ratamess NA, Gaynor P. Am J Physiol Endocrinol Metab. 2002;282(2):E474-E482. PMID 11788381DOI 10.1152/ajpendo.00277.2001原文
- In a crossover trial in eighteen middle-aged men and women, three weeks of L-carnitine L-tartrate (2 g L-carnitine/day) significantly attenuated biochemical markers of purine metabolism after an acute resistance-exercise challenge. Ho JY, Kraemer WJ, Volek JS, Fragala MS, Thomas GA, Dunn-Lewis C, Coday M, Häkkinen K, Maresh CM. Metabolism. 2010;59(8):1190-1199. PMID 20045157DOI 10.1016/j.metabol.2009.11.012原文
- In a placebo-controlled crossover study, 3 g/day of L-carnitine L-tartrate for 21 days in ten healthy active men produced no statistically significant differences from placebo in a complete chemistry panel, liver and renal function markers, or complete blood count. Rubin MR, Volek JS, Gómez AL, Ratamess NA, French DN, Sharman MJ, Kraemer WJ. J Strength Cond Res. 2001;15(4):486-490. PMID 11726261原文
- A pharmacokinetic review of L-carnitine reported 5-18% absolute bioavailability for oral doses of 1-6 g against up to 75% for dietary L-carnitine. Evans AM, Fornasini G. Clin Pharmacokinet. 2003;42(11):941-967. PMID 12908852DOI 10.2165/00003088-200342110-00002原文
08包装、储存与交期
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
01What humidity can we handle this at?
Keep open handling below about 60% RH. Patent literature on carnitine salts describes L-carnitine L-tartrate turning deliquescent just above 60% RH — that is the number to design your blending room and stick-pack line around, not a generic 'store in a dry place'.
02Is the 68% carnitine figure guaranteed or nominal?
68% is the stoichiometric composition of the 2:1 salt and is what appears on the specification. The binding figure for your batch is the carnitine assay on the COA, which we send with the quotation.
03Does GRN 993 mean I can use this in any food in the US?
No, and this is worth being precise about. GRN 993 closed with an 'FDA has no questions' letter, but the notified use was infant formula at a maximum of 0.88 mg/100 kcal. It is not a general food clearance. US dietary supplement use sits under DSHEA. Talk to your regulatory counsel about your specific application.
04How deep is stock on this item?
This is one of our deepest SKUs — roughly 12 tonnes available, about one week to Shanghai. It consolidates well with citrulline and creatine into a single container.
05L-Carnitine Tartrate 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-Carnitine Tartrate 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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